githubmirror/magento2

lib/web/jquery.js
10 881 строка401 KB
Tu Nguyen
Upgrade jquery to 3.6.0
03 ноя 2021, 18:58
03 ноя 2021, 18:58c853bb9
/*!
 * jQuery JavaScript Library v3.6.0
 * https://jquery.com/
 *
 * Includes Sizzle.js
 * https://sizzlejs.com/
 *
 * Copyright OpenJS Foundation and other contributors
 * Released under the MIT license
 * https://jquery.org/license
 *
 * Date: 2021-03-02T17:08Z
 */
( function( global, factory ) {

    "use strict";

    if ( typeof module === "object" && typeof module.exports === "object" ) {

        // For CommonJS and CommonJS-like environments where a proper `window`
        // is present, execute the factory and get jQuery.
        // For environments that do not have a `window` with a `document`
        // (such as Node.js), expose a factory as module.exports.
        // This accentuates the need for the creation of a real `window`.
        // e.g. var jQuery = require("jquery")(window);
        // See ticket #14549 for more info.
        module.exports = global.document ?
            factory( global, true ) :
            function( w ) {
                if ( !w.document ) {
                    throw new Error( "jQuery requires a window with a document" );
                }
                return factory( w );
            };
    } else {
        factory( global );
    }

// Pass this if window is not defined yet
} )( typeof window !== "undefined" ? window : this, function( window, noGlobal ) {

// Edge <= 12 - 13+, Firefox <=18 - 45+, IE 10 - 11, Safari 5.1 - 9+, iOS 6 - 9.1
// throw exceptions when non-strict code (e.g., ASP.NET 4.5) accesses strict mode
// arguments.callee.caller (trac-13335). But as of jQuery 3.0 (2016), strict mode should be common
// enough that all such attempts are guarded in a try block.
    "use strict";

    var arr = [];

    var getProto = Object.getPrototypeOf;

    var slice = arr.slice;

    var flat = arr.flat ? function( array ) {
        return arr.flat.call( array );
    } : function( array ) {
        return arr.concat.apply( [], array );
    };


    var push = arr.push;

    var indexOf = arr.indexOf;

    var class2type = {};

    var toString = class2type.toString;

    var hasOwn = class2type.hasOwnProperty;

    var fnToString = hasOwn.toString;

    var ObjectFunctionString = fnToString.call( Object );

    var support = {};

    var isFunction = function isFunction( obj ) {

        // Support: Chrome <=57, Firefox <=52
        // In some browsers, typeof returns "function" for HTML <object> elements
        // (i.e., `typeof document.createElement( "object" ) === "function"`).
        // We don't want to classify *any* DOM node as a function.
        // Support: QtWeb <=3.8.5, WebKit <=534.34, wkhtmltopdf tool <=0.12.5
        // Plus for old WebKit, typeof returns "function" for HTML collections
        // (e.g., `typeof document.getElementsByTagName("div") === "function"`). (gh-4756)
        return typeof obj === "function" && typeof obj.nodeType !== "number" &&
            typeof obj.item !== "function";
    };


    var isWindow = function isWindow( obj ) {
        return obj != null && obj === obj.window;
    };


    var document = window.document;



    var preservedScriptAttributes = {
        type: true,
        src: true,
        nonce: true,
        noModule: true
    };

    function DOMEval( code, node, doc ) {
        doc = doc || document;

        var i, val,
            script = doc.createElement( "script" );

        script.text = code;
        if ( node ) {
            for ( i in preservedScriptAttributes ) {

                // Support: Firefox 64+, Edge 18+
                // Some browsers don't support the "nonce" property on scripts.
                // On the other hand, just using `getAttribute` is not enough as
                // the `nonce` attribute is reset to an empty string whenever it
                // becomes browsing-context connected.
                // See https://github.com/whatwg/html/issues/2369
                // See https://html.spec.whatwg.org/#nonce-attributes
                // The `node.getAttribute` check was added for the sake of
                // `jQuery.globalEval` so that it can fake a nonce-containing node
                // via an object.
                val = node[ i ] || node.getAttribute && node.getAttribute( i );
                if ( val ) {
                    script.setAttribute( i, val );
                }
            }
        }
        doc.head.appendChild( script ).parentNode.removeChild( script );
    }


    function toType( obj ) {
        if ( obj == null ) {
            return obj + "";
        }

        // Support: Android <=2.3 only (functionish RegExp)
        return typeof obj === "object" || typeof obj === "function" ?
            class2type[ toString.call( obj ) ] || "object" :
            typeof obj;
    }
    /* global Symbol */
// Defining this global in .eslintrc.json would create a danger of using the global
// unguarded in another place, it seems safer to define global only for this module



    var
        version = "3.6.0",

        // Define a local copy of jQuery
        jQuery = function( selector, context ) {

            // The jQuery object is actually just the init constructor 'enhanced'
            // Need init if jQuery is called (just allow error to be thrown if not included)
            return new jQuery.fn.init( selector, context );
        };

    jQuery.fn = jQuery.prototype = {

        // The current version of jQuery being used
        jquery: version,

        constructor: jQuery,

        // The default length of a jQuery object is 0
        length: 0,

        toArray: function() {
            return slice.call( this );
        },

        // Get the Nth element in the matched element set OR
        // Get the whole matched element set as a clean array
        get: function( num ) {

            // Return all the elements in a clean array
            if ( num == null ) {
                return slice.call( this );
            }

            // Return just the one element from the set
            return num < 0 ? this[ num + this.length ] : this[ num ];
        },

        // Take an array of elements and push it onto the stack
        // (returning the new matched element set)
        pushStack: function( elems ) {

            // Build a new jQuery matched element set
            var ret = jQuery.merge( this.constructor(), elems );

            // Add the old object onto the stack (as a reference)
            ret.prevObject = this;

            // Return the newly-formed element set
            return ret;
        },

        // Execute a callback for every element in the matched set.
        each: function( callback ) {
            return jQuery.each( this, callback );
        },

        map: function( callback ) {
            return this.pushStack( jQuery.map( this, function( elem, i ) {
                return callback.call( elem, i, elem );
            } ) );
        },

        slice: function() {
            return this.pushStack( slice.apply( this, arguments ) );
        },

        first: function() {
            return this.eq( 0 );
        },

        last: function() {
            return this.eq( -1 );
        },

        even: function() {
            return this.pushStack( jQuery.grep( this, function( _elem, i ) {
                return ( i + 1 ) % 2;
            } ) );
        },

        odd: function() {
            return this.pushStack( jQuery.grep( this, function( _elem, i ) {
                return i % 2;
            } ) );
        },

        eq: function( i ) {
            var len = this.length,
                j = +i + ( i < 0 ? len : 0 );
            return this.pushStack( j >= 0 && j < len ? [ this[ j ] ] : [] );
        },

        end: function() {
            return this.prevObject || this.constructor();
        },

        // For internal use only.
        // Behaves like an Array's method, not like a jQuery method.
        push: push,
        sort: arr.sort,
        splice: arr.splice
    };

    jQuery.extend = jQuery.fn.extend = function() {
        var options, name, src, copy, copyIsArray, clone,
            target = arguments[ 0 ] || {},
            i = 1,
            length = arguments.length,
            deep = false;

        // Handle a deep copy situation
        if ( typeof target === "boolean" ) {
            deep = target;

            // Skip the boolean and the target
            target = arguments[ i ] || {};
            i++;
        }

        // Handle case when target is a string or something (possible in deep copy)
        if ( typeof target !== "object" && !isFunction( target ) ) {
            target = {};
        }

        // Extend jQuery itself if only one argument is passed
        if ( i === length ) {
            target = this;
            i--;
        }

        for ( ; i < length; i++ ) {

            // Only deal with non-null/undefined values
            if ( ( options = arguments[ i ] ) != null ) {

                // Extend the base object
                for ( name in options ) {
                    copy = options[ name ];

                    // Prevent Object.prototype pollution
                    // Prevent never-ending loop
                    if ( name === "__proto__" || target === copy ) {
                        continue;
                    }

                    // Recurse if we're merging plain objects or arrays
                    if ( deep && copy && ( jQuery.isPlainObject( copy ) ||
                        ( copyIsArray = Array.isArray( copy ) ) ) ) {
                        src = target[ name ];

                        // Ensure proper type for the source value
                        if ( copyIsArray && !Array.isArray( src ) ) {
                            clone = [];
                        } else if ( !copyIsArray && !jQuery.isPlainObject( src ) ) {
                            clone = {};
                        } else {
                            clone = src;
                        }
                        copyIsArray = false;

                        // Never move original objects, clone them
                        target[ name ] = jQuery.extend( deep, clone, copy );

                        // Don't bring in undefined values
                    } else if ( copy !== undefined ) {
                        target[ name ] = copy;
                    }
                }
            }
        }

        // Return the modified object
        return target;
    };

    jQuery.extend( {

        // Unique for each copy of jQuery on the page
        expando: "jQuery" + ( version + Math.random() ).replace( /\D/g, "" ),

        // Assume jQuery is ready without the ready module
        isReady: true,

        error: function( msg ) {
            throw new Error( msg );
        },

        noop: function() {},

        isPlainObject: function( obj ) {
            var proto, Ctor;

            // Detect obvious negatives
            // Use toString instead of jQuery.type to catch host objects
            if ( !obj || toString.call( obj ) !== "[object Object]" ) {
                return false;
            }

            proto = getProto( obj );

            // Objects with no prototype (e.g., `Object.create( null )`) are plain
            if ( !proto ) {
                return true;
            }

            // Objects with prototype are plain iff they were constructed by a global Object function
            Ctor = hasOwn.call( proto, "constructor" ) && proto.constructor;
            return typeof Ctor === "function" && fnToString.call( Ctor ) === ObjectFunctionString;
        },

        isEmptyObject: function( obj ) {
            var name;

            for ( name in obj ) {
                return false;
            }
            return true;
        },

        // Evaluates a script in a provided context; falls back to the global one
        // if not specified.
        globalEval: function( code, options, doc ) {
            DOMEval( code, { nonce: options && options.nonce }, doc );
        },

        each: function( obj, callback ) {
            var length, i = 0;

            if ( isArrayLike( obj ) ) {
                length = obj.length;
                for ( ; i < length; i++ ) {
                    if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
                        break;
                    }
                }
            } else {
                for ( i in obj ) {
                    if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
                        break;
                    }
                }
            }

            return obj;
        },

        // results is for internal usage only
        makeArray: function( arr, results ) {
            var ret = results || [];

            if ( arr != null ) {
                if ( isArrayLike( Object( arr ) ) ) {
                    jQuery.merge( ret,
                        typeof arr === "string" ?
                            [ arr ] : arr
                    );
                } else {
                    push.call( ret, arr );
                }
            }

            return ret;
        },

        inArray: function( elem, arr, i ) {
            return arr == null ? -1 : indexOf.call( arr, elem, i );
        },

        // Support: Android <=4.0 only, PhantomJS 1 only
        // push.apply(_, arraylike) throws on ancient WebKit
        merge: function( first, second ) {
            var len = +second.length,
                j = 0,
                i = first.length;

            for ( ; j < len; j++ ) {
                first[ i++ ] = second[ j ];
            }

            first.length = i;

            return first;
        },

        grep: function( elems, callback, invert ) {
            var callbackInverse,
                matches = [],
                i = 0,
                length = elems.length,
                callbackExpect = !invert;

            // Go through the array, only saving the items
            // that pass the validator function
            for ( ; i < length; i++ ) {
                callbackInverse = !callback( elems[ i ], i );
                if ( callbackInverse !== callbackExpect ) {
                    matches.push( elems[ i ] );
                }
            }

            return matches;
        },

        // arg is for internal usage only
        map: function( elems, callback, arg ) {
            var length, value,
                i = 0,
                ret = [];

            // Go through the array, translating each of the items to their new values
            if ( isArrayLike( elems ) ) {
                length = elems.length;
                for ( ; i < length; i++ ) {
                    value = callback( elems[ i ], i, arg );

                    if ( value != null ) {
                        ret.push( value );
                    }
                }

                // Go through every key on the object,
            } else {
                for ( i in elems ) {
                    value = callback( elems[ i ], i, arg );

                    if ( value != null ) {
                        ret.push( value );
                    }
                }
            }

            // Flatten any nested arrays
            return flat( ret );
        },

        // A global GUID counter for objects
        guid: 1,

        // jQuery.support is not used in Core but other projects attach their
        // properties to it so it needs to exist.
        support: support
    } );

    if ( typeof Symbol === "function" ) {
        jQuery.fn[ Symbol.iterator ] = arr[ Symbol.iterator ];
    }

// Populate the class2type map
    jQuery.each( "Boolean Number String Function Array Date RegExp Object Error Symbol".split( " " ),
        function( _i, name ) {
            class2type[ "[object " + name + "]" ] = name.toLowerCase();
        } );

    function isArrayLike( obj ) {

        // Support: real iOS 8.2 only (not reproducible in simulator)
        // `in` check used to prevent JIT error (gh-2145)
        // hasOwn isn't used here due to false negatives
        // regarding Nodelist length in IE
        var length = !!obj && "length" in obj && obj.length,
            type = toType( obj );

        if ( isFunction( obj ) || isWindow( obj ) ) {
            return false;
        }

        return type === "array" || length === 0 ||
            typeof length === "number" && length > 0 && ( length - 1 ) in obj;
    }
    var Sizzle =
        /*!
 * Sizzle CSS Selector Engine v2.3.6
 * https://sizzlejs.com/
 *
 * Copyright JS Foundation and other contributors
 * Released under the MIT license
 * https://js.foundation/
 *
 * Date: 2021-02-16
 */
        ( function( window ) {
            var i,
                support,
                Expr,
                getText,
                isXML,
                tokenize,
                compile,
                select,
                outermostContext,
                sortInput,
                hasDuplicate,

                // Local document vars
                setDocument,
                document,
                docElem,
                documentIsHTML,
                rbuggyQSA,
                rbuggyMatches,
                matches,
                contains,

                // Instance-specific data
                expando = "sizzle" + 1 * new Date(),
                preferredDoc = window.document,
                dirruns = 0,
                done = 0,
                classCache = createCache(),
                tokenCache = createCache(),
                compilerCache = createCache(),
                nonnativeSelectorCache = createCache(),
                sortOrder = function( a, b ) {
                    if ( a === b ) {
                        hasDuplicate = true;
                    }
                    return 0;
                },

                // Instance methods
                hasOwn = ( {} ).hasOwnProperty,
                arr = [],
                pop = arr.pop,
                pushNative = arr.push,
                push = arr.push,
                slice = arr.slice,

                // Use a stripped-down indexOf as it's faster than native
                // https://jsperf.com/thor-indexof-vs-for/5
                indexOf = function( list, elem ) {
                    var i = 0,
                        len = list.length;
                    for ( ; i < len; i++ ) {
                        if ( list[ i ] === elem ) {
                            return i;
                        }
                    }
                    return -1;
                },

                booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|" +
                    "ismap|loop|multiple|open|readonly|required|scoped",

                // Regular expressions

                // http://www.w3.org/TR/css3-selectors/#whitespace
                whitespace = "[\\x20\\t\\r\\n\\f]",

                // https://www.w3.org/TR/css-syntax-3/#ident-token-diagram
                identifier = "(?:\\\\[\\da-fA-F]{1,6}" + whitespace +
                    "?|\\\\[^\\r\\n\\f]|[\\w-]|[^\0-\\x7f])+",

                // Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors
                attributes = "\\[" + whitespace + "*(" + identifier + ")(?:" + whitespace +

                    // Operator (capture 2)
                    "*([*^$|!~]?=)" + whitespace +

                    // "Attribute values must be CSS identifiers [capture 5]
                    // or strings [capture 3 or capture 4]"
                    "*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" +
                    whitespace + "*\\]",

                pseudos = ":(" + identifier + ")(?:\\((" +

                    // To reduce the number of selectors needing tokenize in the preFilter, prefer arguments:
                    // 1. quoted (capture 3; capture 4 or capture 5)
                    "('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" +

                    // 2. simple (capture 6)
                    "((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" +

                    // 3. anything else (capture 2)
                    ".*" +
                    ")\\)|)",

                // Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter
                rwhitespace = new RegExp( whitespace + "+", "g" ),
                rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" +
                    whitespace + "+$", "g" ),

                rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ),
                rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace +
                    "*" ),
                rdescend = new RegExp( whitespace + "|>" ),

                rpseudo = new RegExp( pseudos ),
                ridentifier = new RegExp( "^" + identifier + "$" ),

                matchExpr = {
                    "ID": new RegExp( "^#(" + identifier + ")" ),
                    "CLASS": new RegExp( "^\\.(" + identifier + ")" ),
                    "TAG": new RegExp( "^(" + identifier + "|[*])" ),
                    "ATTR": new RegExp( "^" + attributes ),
                    "PSEUDO": new RegExp( "^" + pseudos ),
                    "CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" +
                        whitespace + "*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" +
                        whitespace + "*(\\d+)|))" + whitespace + "*\\)|)", "i" ),
                    "bool": new RegExp( "^(?:" + booleans + ")$", "i" ),

                    // For use in libraries implementing .is()
                    // We use this for POS matching in `select`
                    "needsContext": new RegExp( "^" + whitespace +
                        "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" + whitespace +
                        "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" )
                },

                rhtml = /HTML$/i,
                rinputs = /^(?:input|select|textarea|button)$/i,
                rheader = /^h\d$/i,

                rnative = /^[^{]+\{\s*\[native \w/,

                // Easily-parseable/retrievable ID or TAG or CLASS selectors
                rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,

                rsibling = /[+~]/,

                // CSS escapes
                // http://www.w3.org/TR/CSS21/syndata.html#escaped-characters
                runescape = new RegExp( "\\\\[\\da-fA-F]{1,6}" + whitespace + "?|\\\\([^\\r\\n\\f])", "g" ),
                funescape = function( escape, nonHex ) {
                    var high = "0x" + escape.slice( 1 ) - 0x10000;

                    return nonHex ?

                        // Strip the backslash prefix from a non-hex escape sequence
                        nonHex :

                        // Replace a hexadecimal escape sequence with the encoded Unicode code point
                        // Support: IE <=11+
                        // For values outside the Basic Multilingual Plane (BMP), manually construct a
                        // surrogate pair
                        high < 0 ?
                            String.fromCharCode( high + 0x10000 ) :
                            String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );
                },

                // CSS string/identifier serialization
                // https://drafts.csswg.org/cssom/#common-serializing-idioms
                rcssescape = /([\0-\x1f\x7f]|^-?\d)|^-$|[^\0-\x1f\x7f-\uFFFF\w-]/g,
                fcssescape = function( ch, asCodePoint ) {
                    if ( asCodePoint ) {

                        // U+0000 NULL becomes U+FFFD REPLACEMENT CHARACTER
                        if ( ch === "\0" ) {
                            return "\uFFFD";
                        }

                        // Control characters and (dependent upon position) numbers get escaped as code points
                        return ch.slice( 0, -1 ) + "\\" +
                            ch.charCodeAt( ch.length - 1 ).toString( 16 ) + " ";
                    }

                    // Other potentially-special ASCII characters get backslash-escaped
                    return "\\" + ch;
                },

                // Used for iframes
                // See setDocument()
                // Removing the function wrapper causes a "Permission Denied"
                // error in IE
                unloadHandler = function() {
                    setDocument();
                },

                inDisabledFieldset = addCombinator(
                    function( elem ) {
                        return elem.disabled === true && elem.nodeName.toLowerCase() === "fieldset";
                    },
                    { dir: "parentNode", next: "legend" }
                );

// Optimize for push.apply( _, NodeList )
            try {
                push.apply(
                    ( arr = slice.call( preferredDoc.childNodes ) ),
                    preferredDoc.childNodes
                );

                // Support: Android<4.0
                // Detect silently failing push.apply
                // eslint-disable-next-line no-unused-expressions
                arr[ preferredDoc.childNodes.length ].nodeType;
            } catch ( e ) {
                push = { apply: arr.length ?

                        // Leverage slice if possible
                        function( target, els ) {
                            pushNative.apply( target, slice.call( els ) );
                        } :

                        // Support: IE<9
                        // Otherwise append directly
                        function( target, els ) {
                            var j = target.length,
                                i = 0;

                            // Can't trust NodeList.length
                            while ( ( target[ j++ ] = els[ i++ ] ) ) {}
                            target.length = j - 1;
                        }
                };
            }

            function Sizzle( selector, context, results, seed ) {
                var m, i, elem, nid, match, groups, newSelector,
                    newContext = context && context.ownerDocument,

                    // nodeType defaults to 9, since context defaults to document
                    nodeType = context ? context.nodeType : 9;

                results = results || [];

                // Return early from calls with invalid selector or context
                if ( typeof selector !== "string" || !selector ||
                    nodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) {

                    return results;
                }

                // Try to shortcut find operations (as opposed to filters) in HTML documents
                if ( !seed ) {
                    setDocument( context );
                    context = context || document;

                    if ( documentIsHTML ) {

                        // If the selector is sufficiently simple, try using a "get*By*" DOM method
                        // (excepting DocumentFragment context, where the methods don't exist)
                        if ( nodeType !== 11 && ( match = rquickExpr.exec( selector ) ) ) {

                            // ID selector
                            if ( ( m = match[ 1 ] ) ) {

                                // Document context
                                if ( nodeType === 9 ) {
                                    if ( ( elem = context.getElementById( m ) ) ) {

                                        // Support: IE, Opera, Webkit
                                        // TODO: identify versions
                                        // getElementById can match elements by name instead of ID
                                        if ( elem.id === m ) {
                                            results.push( elem );
                                            return results;
                                        }
                                    } else {
                                        return results;
                                    }

                                    // Element context
                                } else {

                                    // Support: IE, Opera, Webkit
                                    // TODO: identify versions
                                    // getElementById can match elements by name instead of ID
                                    if ( newContext && ( elem = newContext.getElementById( m ) ) &&
                                        contains( context, elem ) &&
                                        elem.id === m ) {

                                        results.push( elem );
                                        return results;
                                    }
                                }

                                // Type selector
                            } else if ( match[ 2 ] ) {
                                push.apply( results, context.getElementsByTagName( selector ) );
                                return results;

                                // Class selector
                            } else if ( ( m = match[ 3 ] ) && support.getElementsByClassName &&
                                context.getElementsByClassName ) {

                                push.apply( results, context.getElementsByClassName( m ) );
                                return results;
                            }
                        }

                        // Take advantage of querySelectorAll
                        if ( support.qsa &&
                            !nonnativeSelectorCache[ selector + " " ] &&
                            ( !rbuggyQSA || !rbuggyQSA.test( selector ) ) &&

                            // Support: IE 8 only
                            // Exclude object elements
                            ( nodeType !== 1 || context.nodeName.toLowerCase() !== "object" ) ) {

                            newSelector = selector;
                            newContext = context;

                            // qSA considers elements outside a scoping root when evaluating child or
                            // descendant combinators, which is not what we want.
                            // In such cases, we work around the behavior by prefixing every selector in the
                            // list with an ID selector referencing the scope context.
                            // The technique has to be used as well when a leading combinator is used
                            // as such selectors are not recognized by querySelectorAll.
                            // Thanks to Andrew Dupont for this technique.
                            if ( nodeType === 1 &&
                                ( rdescend.test( selector ) || rcombinators.test( selector ) ) ) {

                                // Expand context for sibling selectors
                                newContext = rsibling.test( selector ) && testContext( context.parentNode ) ||
                                    context;

                                // We can use :scope instead of the ID hack if the browser
                                // supports it & if we're not changing the context.
                                if ( newContext !== context || !support.scope ) {

                                    // Capture the context ID, setting it first if necessary
                                    if ( ( nid = context.getAttribute( "id" ) ) ) {
                                        nid = nid.replace( rcssescape, fcssescape );
                                    } else {
                                        context.setAttribute( "id", ( nid = expando ) );
                                    }
                                }

                                // Prefix every selector in the list
                                groups = tokenize( selector );
                                i = groups.length;
                                while ( i-- ) {
                                    groups[ i ] = ( nid ? "#" + nid : ":scope" ) + " " +
                                        toSelector( groups[ i ] );
                                }
                                newSelector = groups.join( "," );
                            }

                            try {
                                push.apply( results,
                                    newContext.querySelectorAll( newSelector )
                                );
                                return results;
                            } catch ( qsaError ) {
                                nonnativeSelectorCache( selector, true );
                            } finally {
                                if ( nid === expando ) {
                                    context.removeAttribute( "id" );
                                }
                            }
                        }
                    }
                }

                // All others
                return select( selector.replace( rtrim, "$1" ), context, results, seed );
            }

            /**
             * Create key-value caches of limited size
             * @returns {function(string, object)} Returns the Object data after storing it on itself with
             *	property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)
             *	deleting the oldest entry
             */
            function createCache() {
                var keys = [];

                function cache( key, value ) {

                    // Use (key + " ") to avoid collision with native prototype properties (see Issue #157)
                    if ( keys.push( key + " " ) > Expr.cacheLength ) {

                        // Only keep the most recent entries
                        delete cache[ keys.shift() ];
                    }
                    return ( cache[ key + " " ] = value );
                }
                return cache;
            }

            /**
             * Mark a function for special use by Sizzle
             * @param {Function} fn The function to mark
             */
            function markFunction( fn ) {
                fn[ expando ] = true;
                return fn;
            }

            /**
             * Support testing using an element
             * @param {Function} fn Passed the created element and returns a boolean result
             */
            function assert( fn ) {
                var el = document.createElement( "fieldset" );

                try {
                    return !!fn( el );
                } catch ( e ) {
                    return false;
                } finally {

                    // Remove from its parent by default
                    if ( el.parentNode ) {
                        el.parentNode.removeChild( el );
                    }

                    // release memory in IE
                    el = null;
                }
            }

            /**
             * Adds the same handler for all of the specified attrs
             * @param {String} attrs Pipe-separated list of attributes
             * @param {Function} handler The method that will be applied
             */
            function addHandle( attrs, handler ) {
                var arr = attrs.split( "|" ),
                    i = arr.length;

                while ( i-- ) {
                    Expr.attrHandle[ arr[ i ] ] = handler;
                }
            }

            /**
             * Checks document order of two siblings
             * @param {Element} a
             * @param {Element} b
             * @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b
             */
            function siblingCheck( a, b ) {
                var cur = b && a,
                    diff = cur && a.nodeType === 1 && b.nodeType === 1 &&
                        a.sourceIndex - b.sourceIndex;

                // Use IE sourceIndex if available on both nodes
                if ( diff ) {
                    return diff;
                }

                // Check if b follows a
                if ( cur ) {
                    while ( ( cur = cur.nextSibling ) ) {
                        if ( cur === b ) {
                            return -1;
                        }
                    }
                }

                return a ? 1 : -1;
            }

            /**
             * Returns a function to use in pseudos for input types
             * @param {String} type
             */
            function createInputPseudo( type ) {
                return function( elem ) {
                    var name = elem.nodeName.toLowerCase();
                    return name === "input" && elem.type === type;
                };
            }

            /**
             * Returns a function to use in pseudos for buttons
             * @param {String} type
             */
            function createButtonPseudo( type ) {
                return function( elem ) {
                    var name = elem.nodeName.toLowerCase();
                    return ( name === "input" || name === "button" ) && elem.type === type;
                };
            }

            /**
             * Returns a function to use in pseudos for :enabled/:disabled
             * @param {Boolean} disabled true for :disabled; false for :enabled
             */
            function createDisabledPseudo( disabled ) {

                // Known :disabled false positives: fieldset[disabled] > legend:nth-of-type(n+2) :can-disable
                return function( elem ) {

                    // Only certain elements can match :enabled or :disabled
                    // https://html.spec.whatwg.org/multipage/scripting.html#selector-enabled
                    // https://html.spec.whatwg.org/multipage/scripting.html#selector-disabled
                    if ( "form" in elem ) {

                        // Check for inherited disabledness on relevant non-disabled elements:
                        // * listed form-associated elements in a disabled fieldset
                        //   https://html.spec.whatwg.org/multipage/forms.html#category-listed
                        //   https://html.spec.whatwg.org/multipage/forms.html#concept-fe-disabled
                        // * option elements in a disabled optgroup
                        //   https://html.spec.whatwg.org/multipage/forms.html#concept-option-disabled
                        // All such elements have a "form" property.
                        if ( elem.parentNode && elem.disabled === false ) {

                            // Option elements defer to a parent optgroup if present
                            if ( "label" in elem ) {
                                if ( "label" in elem.parentNode ) {
                                    return elem.parentNode.disabled === disabled;
                                } else {
                                    return elem.disabled === disabled;
                                }
                            }

                            // Support: IE 6 - 11
                            // Use the isDisabled shortcut property to check for disabled fieldset ancestors
                            return elem.isDisabled === disabled ||

                                // Where there is no isDisabled, check manually
                                /* jshint -W018 */
                                elem.isDisabled !== !disabled &&
                                inDisabledFieldset( elem ) === disabled;
                        }

                        return elem.disabled === disabled;

                        // Try to winnow out elements that can't be disabled before trusting the disabled property.
                        // Some victims get caught in our net (label, legend, menu, track), but it shouldn't
                        // even exist on them, let alone have a boolean value.
                    } else if ( "label" in elem ) {
                        return elem.disabled === disabled;
                    }

                    // Remaining elements are neither :enabled nor :disabled
                    return false;
                };
            }

            /**
             * Returns a function to use in pseudos for positionals
             * @param {Function} fn
             */
            function createPositionalPseudo( fn ) {
                return markFunction( function( argument ) {
                    argument = +argument;
                    return markFunction( function( seed, matches ) {
                        var j,
                            matchIndexes = fn( [], seed.length, argument ),
                            i = matchIndexes.length;

                        // Match elements found at the specified indexes
                        while ( i-- ) {
                            if ( seed[ ( j = matchIndexes[ i ] ) ] ) {
                                seed[ j ] = !( matches[ j ] = seed[ j ] );
                            }
                        }
                    } );
                } );
            }

            /**
             * Checks a node for validity as a Sizzle context
             * @param {Element|Object=} context
             * @returns {Element|Object|Boolean} The input node if acceptable, otherwise a falsy value
             */
            function testContext( context ) {
                return context && typeof context.getElementsByTagName !== "undefined" && context;
            }

// Expose support vars for convenience
            support = Sizzle.support = {};

            /**
             * Detects XML nodes
             * @param {Element|Object} elem An element or a document
             * @returns {Boolean} True iff elem is a non-HTML XML node
             */
            isXML = Sizzle.isXML = function( elem ) {
                var namespace = elem && elem.namespaceURI,
                    docElem = elem && ( elem.ownerDocument || elem ).documentElement;

                // Support: IE <=8
                // Assume HTML when documentElement doesn't yet exist, such as inside loading iframes
                // https://bugs.jquery.com/ticket/4833
                return !rhtml.test( namespace || docElem && docElem.nodeName || "HTML" );
            };

            /**
             * Sets document-related variables once based on the current document
             * @param {Element|Object} [doc] An element or document object to use to set the document
             * @returns {Object} Returns the current document
             */
            setDocument = Sizzle.setDocument = function( node ) {
                var hasCompare, subWindow,
                    doc = node ? node.ownerDocument || node : preferredDoc;

                // Return early if doc is invalid or already selected
                // Support: IE 11+, Edge 17 - 18+
                // IE/Edge sometimes throw a "Permission denied" error when strict-comparing
                // two documents; shallow comparisons work.
                // eslint-disable-next-line eqeqeq
                if ( doc == document || doc.nodeType !== 9 || !doc.documentElement ) {
                    return document;
                }

                // Update global variables
                document = doc;
                docElem = document.documentElement;
                documentIsHTML = !isXML( document );

                // Support: IE 9 - 11+, Edge 12 - 18+
                // Accessing iframe documents after unload throws "permission denied" errors (jQuery #13936)
                // Support: IE 11+, Edge 17 - 18+
                // IE/Edge sometimes throw a "Permission denied" error when strict-comparing
                // two documents; shallow comparisons work.
                // eslint-disable-next-line eqeqeq
                if ( preferredDoc != document &&
                    ( subWindow = document.defaultView ) && subWindow.top !== subWindow ) {

                    // Support: IE 11, Edge
                    if ( subWindow.addEventListener ) {
                        subWindow.addEventListener( "unload", unloadHandler, false );

                        // Support: IE 9 - 10 only
                    } else if ( subWindow.attachEvent ) {
                        subWindow.attachEvent( "onunload", unloadHandler );
                    }
                }

                // Support: IE 8 - 11+, Edge 12 - 18+, Chrome <=16 - 25 only, Firefox <=3.6 - 31 only,
                // Safari 4 - 5 only, Opera <=11.6 - 12.x only
                // IE/Edge & older browsers don't support the :scope pseudo-class.
                // Support: Safari 6.0 only
                // Safari 6.0 supports :scope but it's an alias of :root there.
                support.scope = assert( function( el ) {
                    docElem.appendChild( el ).appendChild( document.createElement( "div" ) );
                    return typeof el.querySelectorAll !== "undefined" &&
                        !el.querySelectorAll( ":scope fieldset div" ).length;
                } );

                /* Attributes
	---------------------------------------------------------------------- */

                // Support: IE<8
                // Verify that getAttribute really returns attributes and not properties
                // (excepting IE8 booleans)
                support.attributes = assert( function( el ) {
                    el.className = "i";
                    return !el.getAttribute( "className" );
                } );

                /* getElement(s)By*
	---------------------------------------------------------------------- */

                // Check if getElementsByTagName("*") returns only elements
                support.getElementsByTagName = assert( function( el ) {
                    el.appendChild( document.createComment( "" ) );
                    return !el.getElementsByTagName( "*" ).length;
                } );

                // Support: IE<9
                support.getElementsByClassName = rnative.test( document.getElementsByClassName );

                // Support: IE<10
                // Check if getElementById returns elements by name
                // The broken getElementById methods don't pick up programmatically-set names,
                // so use a roundabout getElementsByName test
                support.getById = assert( function( el ) {
                    docElem.appendChild( el ).id = expando;
                    return !document.getElementsByName || !document.getElementsByName( expando ).length;
                } );

                // ID filter and find
                if ( support.getById ) {
                    Expr.filter[ "ID" ] = function( id ) {
                        var attrId = id.replace( runescape, funescape );
                        return function( elem ) {
                            return elem.getAttribute( "id" ) === attrId;
                        };
                    };
                    Expr.find[ "ID" ] = function( id, context ) {
                        if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
                            var elem = context.getElementById( id );
                            return elem ? [ elem ] : [];
                        }
                    };
                } else {
                    Expr.filter[ "ID" ] =  function( id ) {
                        var attrId = id.replace( runescape, funescape );
                        return function( elem ) {
                            var node = typeof elem.getAttributeNode !== "undefined" &&
                                elem.getAttributeNode( "id" );
                            return node && node.value === attrId;
                        };
                    };

                    // Support: IE 6 - 7 only
                    // getElementById is not reliable as a find shortcut
                    Expr.find[ "ID" ] = function( id, context ) {
                        if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
                            var node, i, elems,
                                elem = context.getElementById( id );

                            if ( elem ) {

                                // Verify the id attribute
                                node = elem.getAttributeNode( "id" );
                                if ( node && node.value === id ) {
                                    return [ elem ];
                                }

                                // Fall back on getElementsByName
                                elems = context.getElementsByName( id );
                                i = 0;
                                while ( ( elem = elems[ i++ ] ) ) {
                                    node = elem.getAttributeNode( "id" );
                                    if ( node && node.value === id ) {
                                        return [ elem ];
                                    }
                                }
                            }

                            return [];
                        }
                    };
                }

                // Tag
                Expr.find[ "TAG" ] = support.getElementsByTagName ?
                    function( tag, context ) {
                        if ( typeof context.getElementsByTagName !== "undefined" ) {
                            return context.getElementsByTagName( tag );

                            // DocumentFragment nodes don't have gEBTN
                        } else if ( support.qsa ) {
                            return context.querySelectorAll( tag );
                        }
                    } :

                    function( tag, context ) {
                        var elem,
                            tmp = [],
                            i = 0,

                            // By happy coincidence, a (broken) gEBTN appears on DocumentFragment nodes too
                            results = context.getElementsByTagName( tag );

                        // Filter out possible comments
                        if ( tag === "*" ) {
                            while ( ( elem = results[ i++ ] ) ) {
                                if ( elem.nodeType === 1 ) {
                                    tmp.push( elem );
                                }
                            }

                            return tmp;
                        }
                        return results;
                    };

                // Class
                Expr.find[ "CLASS" ] = support.getElementsByClassName && function( className, context ) {
                    if ( typeof context.getElementsByClassName !== "undefined" && documentIsHTML ) {
                        return context.getElementsByClassName( className );
                    }
                };

                /* QSA/matchesSelector
	---------------------------------------------------------------------- */

                // QSA and matchesSelector support

                // matchesSelector(:active) reports false when true (IE9/Opera 11.5)
                rbuggyMatches = [];

                // qSa(:focus) reports false when true (Chrome 21)
                // We allow this because of a bug in IE8/9 that throws an error
                // whenever `document.activeElement` is accessed on an iframe
                // So, we allow :focus to pass through QSA all the time to avoid the IE error
                // See https://bugs.jquery.com/ticket/13378
                rbuggyQSA = [];

                if ( ( support.qsa = rnative.test( document.querySelectorAll ) ) ) {

                    // Build QSA regex
                    // Regex strategy adopted from Diego Perini
                    assert( function( el ) {

                        var input;

                        // Select is set to empty string on purpose
                        // This is to test IE's treatment of not explicitly
                        // setting a boolean content attribute,
                        // since its presence should be enough
                        // https://bugs.jquery.com/ticket/12359
                        docElem.appendChild( el ).innerHTML = "<a id='" + expando + "'></a>" +
                            "<select id='" + expando + "-\r\\' msallowcapture=''>" +
                            "<option selected=''></option></select>";

                        // Support: IE8, Opera 11-12.16
                        // Nothing should be selected when empty strings follow ^= or $= or *=
                        // The test attribute must be unknown in Opera but "safe" for WinRT
                        // https://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section
                        if ( el.querySelectorAll( "[msallowcapture^='']" ).length ) {
                            rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:''|\"\")" );
                        }

                        // Support: IE8
                        // Boolean attributes and "value" are not treated correctly
                        if ( !el.querySelectorAll( "[selected]" ).length ) {
                            rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" );
                        }

                        // Support: Chrome<29, Android<4.4, Safari<7.0+, iOS<7.0+, PhantomJS<1.9.8+
                        if ( !el.querySelectorAll( "[id~=" + expando + "-]" ).length ) {
                            rbuggyQSA.push( "~=" );
                        }

                        // Support: IE 11+, Edge 15 - 18+
                        // IE 11/Edge don't find elements on a `[name='']` query in some cases.
                        // Adding a temporary attribute to the document before the selection works
                        // around the issue.
                        // Interestingly, IE 10 & older don't seem to have the issue.
                        input = document.createElement( "input" );
                        input.setAttribute( "name", "" );
                        el.appendChild( input );
                        if ( !el.querySelectorAll( "[name='']" ).length ) {
                            rbuggyQSA.push( "\\[" + whitespace + "*name" + whitespace + "*=" +
                                whitespace + "*(?:''|\"\")" );
                        }

                        // Webkit/Opera - :checked should return selected option elements
                        // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
                        // IE8 throws error here and will not see later tests
                        if ( !el.querySelectorAll( ":checked" ).length ) {
                            rbuggyQSA.push( ":checked" );
                        }

                        // Support: Safari 8+, iOS 8+
                        // https://bugs.webkit.org/show_bug.cgi?id=136851
                        // In-page `selector#id sibling-combinator selector` fails
                        if ( !el.querySelectorAll( "a#" + expando + "+*" ).length ) {
                            rbuggyQSA.push( ".#.+[+~]" );
                        }

                        // Support: Firefox <=3.6 - 5 only
                        // Old Firefox doesn't throw on a badly-escaped identifier.
                        el.querySelectorAll( "\\\f" );
                        rbuggyQSA.push( "[\\r\\n\\f]" );
                    } );

                    assert( function( el ) {
                        el.innerHTML = "<a href='' disabled='disabled'></a>" +
                            "<select disabled='disabled'><option/></select>";

                        // Support: Windows 8 Native Apps
                        // The type and name attributes are restricted during .innerHTML assignment
                        var input = document.createElement( "input" );
                        input.setAttribute( "type", "hidden" );
                        el.appendChild( input ).setAttribute( "name", "D" );

                        // Support: IE8
                        // Enforce case-sensitivity of name attribute
                        if ( el.querySelectorAll( "[name=d]" ).length ) {
                            rbuggyQSA.push( "name" + whitespace + "*[*^$|!~]?=" );
                        }

                        // FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled)
                        // IE8 throws error here and will not see later tests
                        if ( el.querySelectorAll( ":enabled" ).length !== 2 ) {
                            rbuggyQSA.push( ":enabled", ":disabled" );
                        }

                        // Support: IE9-11+
                        // IE's :disabled selector does not pick up the children of disabled fieldsets
                        docElem.appendChild( el ).disabled = true;
                        if ( el.querySelectorAll( ":disabled" ).length !== 2 ) {
                            rbuggyQSA.push( ":enabled", ":disabled" );
                        }

                        // Support: Opera 10 - 11 only
                        // Opera 10-11 does not throw on post-comma invalid pseudos
                        el.querySelectorAll( "*,:x" );
                        rbuggyQSA.push( ",.*:" );
                    } );
                }

                if ( ( support.matchesSelector = rnative.test( ( matches = docElem.matches ||
                    docElem.webkitMatchesSelector ||
                    docElem.mozMatchesSelector ||
                    docElem.oMatchesSelector ||
                    docElem.msMatchesSelector ) ) ) ) {

                    assert( function( el ) {

                        // Check to see if it's possible to do matchesSelector
                        // on a disconnected node (IE 9)
                        support.disconnectedMatch = matches.call( el, "*" );

                        // This should fail with an exception
                        // Gecko does not error, returns false instead
                        matches.call( el, "[s!='']:x" );
                        rbuggyMatches.push( "!=", pseudos );
                    } );
                }

                rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join( "|" ) );
                rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join( "|" ) );

                /* Contains
	---------------------------------------------------------------------- */
                hasCompare = rnative.test( docElem.compareDocumentPosition );

                // Element contains another
                // Purposefully self-exclusive
                // As in, an element does not contain itself
                contains = hasCompare || rnative.test( docElem.contains ) ?
                    function( a, b ) {
                        var adown = a.nodeType === 9 ? a.documentElement : a,
                            bup = b && b.parentNode;
                        return a === bup || !!( bup && bup.nodeType === 1 && (
                            adown.contains ?
                                adown.contains( bup ) :
                                a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16
                        ) );
                    } :
                    function( a, b ) {
                        if ( b ) {
                            while ( ( b = b.parentNode ) ) {
                                if ( b === a ) {
                                    return true;
                                }
                            }
                        }
                        return false;
                    };

                /* Sorting
	---------------------------------------------------------------------- */

                // Document order sorting
                sortOrder = hasCompare ?
                    function( a, b ) {

                        // Flag for duplicate removal
                        if ( a === b ) {
                            hasDuplicate = true;
                            return 0;
                        }

                        // Sort on method existence if only one input has compareDocumentPosition
                        var compare = !a.compareDocumentPosition - !b.compareDocumentPosition;
                        if ( compare ) {
                            return compare;
                        }

                        // Calculate position if both inputs belong to the same document
                        // Support: IE 11+, Edge 17 - 18+
                        // IE/Edge sometimes throw a "Permission denied" error when strict-comparing
                        // two documents; shallow comparisons work.
                        // eslint-disable-next-line eqeqeq
                        compare = ( a.ownerDocument || a ) == ( b.ownerDocument || b ) ?
                            a.compareDocumentPosition( b ) :

                            // Otherwise we know they are disconnected
                            1;

                        // Disconnected nodes
                        if ( compare & 1 ||
                            ( !support.sortDetached && b.compareDocumentPosition( a ) === compare ) ) {

                            // Choose the first element that is related to our preferred document
                            // Support: IE 11+, Edge 17 - 18+
                            // IE/Edge sometimes throw a "Permission denied" error when strict-comparing
                            // two documents; shallow comparisons work.
                            // eslint-disable-next-line eqeqeq
                            if ( a == document || a.ownerDocument == preferredDoc &&
                                contains( preferredDoc, a ) ) {
                                return -1;
                            }

                            // Support: IE 11+, Edge 17 - 18+
                            // IE/Edge sometimes throw a "Permission denied" error when strict-comparing
                            // two documents; shallow comparisons work.
                            // eslint-disable-next-line eqeqeq
                            if ( b == document || b.ownerDocument == preferredDoc &&
                                contains( preferredDoc, b ) ) {
                                return 1;
                            }

                            // Maintain original order
                            return sortInput ?
                                ( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
                                0;
                        }

                        return compare & 4 ? -1 : 1;
                    } :
                    function( a, b ) {

                        // Exit early if the nodes are identical
                        if ( a === b ) {
                            hasDuplicate = true;
                            return 0;
                        }

                        var cur,
                            i = 0,
                            aup = a.parentNode,
                            bup = b.parentNode,
                            ap = [ a ],
                            bp = [ b ];

                        // Parentless nodes are either documents or disconnected
                        if ( !aup || !bup ) {

                            // Support: IE 11+, Edge 17 - 18+
                            // IE/Edge sometimes throw a "Permission denied" error when strict-comparing
                            // two documents; shallow comparisons work.
                            /* eslint-disable eqeqeq */
                            return a == document ? -1 :
                                b == document ? 1 :
                                    /* eslint-enable eqeqeq */
                                    aup ? -1 :
                                        bup ? 1 :
                                            sortInput ?
                                                ( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
                                                0;

                            // If the nodes are siblings, we can do a quick check
                        } else if ( aup === bup ) {
                            return siblingCheck( a, b );
                        }

                        // Otherwise we need full lists of their ancestors for comparison
                        cur = a;
                        while ( ( cur = cur.parentNode ) ) {
                            ap.unshift( cur );
                        }
                        cur = b;
                        while ( ( cur = cur.parentNode ) ) {
                            bp.unshift( cur );
                        }

                        // Walk down the tree looking for a discrepancy
                        while ( ap[ i ] === bp[ i ] ) {
                            i++;
                        }

                        return i ?

                            // Do a sibling check if the nodes have a common ancestor
                            siblingCheck( ap[ i ], bp[ i ] ) :

                            // Otherwise nodes in our document sort first
                            // Support: IE 11+, Edge 17 - 18+
                            // IE/Edge sometimes throw a "Permission denied" error when strict-comparing
                            // two documents; shallow comparisons work.
                            /* eslint-disable eqeqeq */
                            ap[ i ] == preferredDoc ? -1 :
                                bp[ i ] == preferredDoc ? 1 :
                                    /* eslint-enable eqeqeq */
                                    0;
                    };

                return document;
            };

            Sizzle.matches = function( expr, elements ) {
                return Sizzle( expr, null, null, elements );
            };

            Sizzle.matchesSelector = function( elem, expr ) {
                setDocument( elem );

                if ( support.matchesSelector && documentIsHTML &&
                    !nonnativeSelectorCache[ expr + " " ] &&
                    ( !rbuggyMatches || !rbuggyMatches.test( expr ) ) &&
                    ( !rbuggyQSA     || !rbuggyQSA.test( expr ) ) ) {

                    try {
                        var ret = matches.call( elem, expr );

                        // IE 9's matchesSelector returns false on disconnected nodes
                        if ( ret || support.disconnectedMatch ||

                            // As well, disconnected nodes are said to be in a document
                            // fragment in IE 9
                            elem.document && elem.document.nodeType !== 11 ) {
                            return ret;
                        }
                    } catch ( e ) {
                        nonnativeSelectorCache( expr, true );
                    }
                }

                return Sizzle( expr, document, null, [ elem ] ).length > 0;
            };

            Sizzle.contains = function( context, elem ) {

                // Set document vars if needed
                // Support: IE 11+, Edge 17 - 18+
                // IE/Edge sometimes throw a "Permission denied" error when strict-comparing
                // two documents; shallow comparisons work.
                // eslint-disable-next-line eqeqeq
                if ( ( context.ownerDocument || context ) != document ) {
                    setDocument( context );
                }
                return contains( context, elem );
            };

            Sizzle.attr = function( elem, name ) {

                // Set document vars if needed
                // Support: IE 11+, Edge 17 - 18+
                // IE/Edge sometimes throw a "Permission denied" error when strict-comparing
                // two documents; shallow comparisons work.
                // eslint-disable-next-line eqeqeq
                if ( ( elem.ownerDocument || elem ) != document ) {
                    setDocument( elem );
                }

                var fn = Expr.attrHandle[ name.toLowerCase() ],

                    // Don't get fooled by Object.prototype properties (jQuery #13807)
                    val = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ?
                        fn( elem, name, !documentIsHTML ) :
                        undefined;

                return val !== undefined ?
                    val :
                    support.attributes || !documentIsHTML ?
                        elem.getAttribute( name ) :
                        ( val = elem.getAttributeNode( name ) ) && val.specified ?
                            val.value :
                            null;
            };

            Sizzle.escape = function( sel ) {
                return ( sel + "" ).replace( rcssescape, fcssescape );
            };

            Sizzle.error = function( msg ) {
                throw new Error( "Syntax error, unrecognized expression: " + msg );
            };

            /**
             * Document sorting and removing duplicates
             * @param {ArrayLike} results
             */
            Sizzle.uniqueSort = function( results ) {
                var elem,
                    duplicates = [],
                    j = 0,
                    i = 0;

                // Unless we *know* we can detect duplicates, assume their presence
                hasDuplicate = !support.detectDuplicates;
                sortInput = !support.sortStable && results.slice( 0 );
                results.sort( sortOrder );

                if ( hasDuplicate ) {
                    while ( ( elem = results[ i++ ] ) ) {
                        if ( elem === results[ i ] ) {
                            j = duplicates.push( i );
                        }
                    }
                    while ( j-- ) {
                        results.splice( duplicates[ j ], 1 );
                    }
                }

                // Clear input after sorting to release objects
                // See https://github.com/jquery/sizzle/pull/225
                sortInput = null;

                return results;
            };

            /**
             * Utility function for retrieving the text value of an array of DOM nodes
             * @param {Array|Element} elem
             */
            getText = Sizzle.getText = function( elem ) {
                var node,
                    ret = "",
                    i = 0,
                    nodeType = elem.nodeType;

                if ( !nodeType ) {

                    // If no nodeType, this is expected to be an array
                    while ( ( node = elem[ i++ ] ) ) {

                        // Do not traverse comment nodes
                        ret += getText( node );
                    }
                } else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) {

                    // Use textContent for elements
                    // innerText usage removed for consistency of new lines (jQuery #11153)
                    if ( typeof elem.textContent === "string" ) {
                        return elem.textContent;
                    } else {

                        // Traverse its children
                        for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
                            ret += getText( elem );
                        }
                    }
                } else if ( nodeType === 3 || nodeType === 4 ) {
                    return elem.nodeValue;
                }

                // Do not include comment or processing instruction nodes

                return ret;
            };

            Expr = Sizzle.selectors = {

                // Can be adjusted by the user
                cacheLength: 50,

                createPseudo: markFunction,

                match: matchExpr,

                attrHandle: {},

                find: {},

                relative: {
                    ">": { dir: "parentNode", first: true },
                    " ": { dir: "parentNode" },
                    "+": { dir: "previousSibling", first: true },
                    "~": { dir: "previousSibling" }
                },

                preFilter: {
                    "ATTR": function( match ) {
                        match[ 1 ] = match[ 1 ].replace( runescape, funescape );

                        // Move the given value to match[3] whether quoted or unquoted
                        match[ 3 ] = ( match[ 3 ] || match[ 4 ] ||
                            match[ 5 ] || "" ).replace( runescape, funescape );

                        if ( match[ 2 ] === "~=" ) {
                            match[ 3 ] = " " + match[ 3 ] + " ";
                        }

                        return match.slice( 0, 4 );
                    },

                    "CHILD": function( match ) {

                        /* matches from matchExpr["CHILD"]
				1 type (only|nth|...)
				2 what (child|of-type)
				3 argument (even|odd|\d*|\d*n([+-]\d+)?|...)
				4 xn-component of xn+y argument ([+-]?\d*n|)
				5 sign of xn-component
				6 x of xn-component
				7 sign of y-component
				8 y of y-component
			*/
                        match[ 1 ] = match[ 1 ].toLowerCase();

                        if ( match[ 1 ].slice( 0, 3 ) === "nth" ) {

                            // nth-* requires argument
                            if ( !match[ 3 ] ) {
                                Sizzle.error( match[ 0 ] );
                            }

                            // numeric x and y parameters for Expr.filter.CHILD
                            // remember that false/true cast respectively to 0/1
                            match[ 4 ] = +( match[ 4 ] ?
                                match[ 5 ] + ( match[ 6 ] || 1 ) :
                                2 * ( match[ 3 ] === "even" || match[ 3 ] === "odd" ) );
                            match[ 5 ] = +( ( match[ 7 ] + match[ 8 ] ) || match[ 3 ] === "odd" );

                            // other types prohibit arguments
                        } else if ( match[ 3 ] ) {
                            Sizzle.error( match[ 0 ] );
                        }

                        return match;
                    },

                    "PSEUDO": function( match ) {
                        var excess,
                            unquoted = !match[ 6 ] && match[ 2 ];

                        if ( matchExpr[ "CHILD" ].test( match[ 0 ] ) ) {
                            return null;
                        }

                        // Accept quoted arguments as-is
                        if ( match[ 3 ] ) {
                            match[ 2 ] = match[ 4 ] || match[ 5 ] || "";

                            // Strip excess characters from unquoted arguments
                        } else if ( unquoted && rpseudo.test( unquoted ) &&

                            // Get excess from tokenize (recursively)
                            ( excess = tokenize( unquoted, true ) ) &&

                            // advance to the next closing parenthesis
                            ( excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length ) ) {

                            // excess is a negative index
                            match[ 0 ] = match[ 0 ].slice( 0, excess );
                            match[ 2 ] = unquoted.slice( 0, excess );
                        }

                        // Return only captures needed by the pseudo filter method (type and argument)
                        return match.slice( 0, 3 );
                    }
                },

                filter: {

                    "TAG": function( nodeNameSelector ) {
                        var nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase();
                        return nodeNameSelector === "*" ?
                            function() {
                                return true;
                            } :
                            function( elem ) {
                                return elem.nodeName && elem.nodeName.toLowerCase() === nodeName;
                            };
                    },

                    "CLASS": function( className ) {
                        var pattern = classCache[ className + " " ];

                        return pattern ||
                            ( pattern = new RegExp( "(^|" + whitespace +
                                ")" + className + "(" + whitespace + "|$)" ) ) && classCache(
                                className, function( elem ) {
                                    return pattern.test(
                                        typeof elem.className === "string" && elem.className ||
                                        typeof elem.getAttribute !== "undefined" &&
                                        elem.getAttribute( "class" ) ||
                                        ""
                                    );
                                } );
                    },

                    "ATTR": function( name, operator, check ) {
                        return function( elem ) {
                            var result = Sizzle.attr( elem, name );

                            if ( result == null ) {
                                return operator === "!=";
                            }
                            if ( !operator ) {
                                return true;
                            }

                            result += "";

                            /* eslint-disable max-len */

                            return operator === "=" ? result === check :
                                operator === "!=" ? result !== check :
                                    operator === "^=" ? check && result.indexOf( check ) === 0 :
                                        operator === "*=" ? check && result.indexOf( check ) > -1 :
                                            operator === "$=" ? check && result.slice( -check.length ) === check :
                                                operator === "~=" ? ( " " + result.replace( rwhitespace, " " ) + " " ).indexOf( check ) > -1 :
                                                    operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" :
                                                        false;
                            /* eslint-enable max-len */

                        };
                    },

                    "CHILD": function( type, what, _argument, first, last ) {
                        var simple = type.slice( 0, 3 ) !== "nth",
                            forward = type.slice( -4 ) !== "last",
                            ofType = what === "of-type";

                        return first === 1 && last === 0 ?

                            // Shortcut for :nth-*(n)
                            function( elem ) {
                                return !!elem.parentNode;
                            } :

                            function( elem, _context, xml ) {
                                var cache, uniqueCache, outerCache, node, nodeIndex, start,
                                    dir = simple !== forward ? "nextSibling" : "previousSibling",
                                    parent = elem.parentNode,
                                    name = ofType && elem.nodeName.toLowerCase(),
                                    useCache = !xml && !ofType,
                                    diff = false;

                                if ( parent ) {

                                    // :(first|last|only)-(child|of-type)
                                    if ( simple ) {
                                        while ( dir ) {
                                            node = elem;
                                            while ( ( node = node[ dir ] ) ) {
                                                if ( ofType ?
                                                    node.nodeName.toLowerCase() === name :
                                                    node.nodeType === 1 ) {

                                                    return false;
                                                }
                                            }

                                            // Reverse direction for :only-* (if we haven't yet done so)
                                            start = dir = type === "only" && !start && "nextSibling";
                                        }
                                        return true;
                                    }

                                    start = [ forward ? parent.firstChild : parent.lastChild ];

                                    // non-xml :nth-child(...) stores cache data on `parent`
                                    if ( forward && useCache ) {

                                        // Seek `elem` from a previously-cached index

                                        // ...in a gzip-friendly way
                                        node = parent;
                                        outerCache = node[ expando ] || ( node[ expando ] = {} );

                                        // Support: IE <9 only
                                        // Defend against cloned attroperties (jQuery gh-1709)
                                        uniqueCache = outerCache[ node.uniqueID ] ||
                                            ( outerCache[ node.uniqueID ] = {} );

                                        cache = uniqueCache[ type ] || [];
                                        nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
                                        diff = nodeIndex && cache[ 2 ];
                                        node = nodeIndex && parent.childNodes[ nodeIndex ];

                                        while ( ( node = ++nodeIndex && node && node[ dir ] ||

                                            // Fallback to seeking `elem` from the start
                                            ( diff = nodeIndex = 0 ) || start.pop() ) ) {

                                            // When found, cache indexes on `parent` and break
                                            if ( node.nodeType === 1 && ++diff && node === elem ) {
                                                uniqueCache[ type ] = [ dirruns, nodeIndex, diff ];
                                                break;
                                            }
                                        }

                                    } else {

                                        // Use previously-cached element index if available
                                        if ( useCache ) {

                                            // ...in a gzip-friendly way
                                            node = elem;
                                            outerCache = node[ expando ] || ( node[ expando ] = {} );

                                            // Support: IE <9 only
                                            // Defend against cloned attroperties (jQuery gh-1709)
                                            uniqueCache = outerCache[ node.uniqueID ] ||
                                                ( outerCache[ node.uniqueID ] = {} );

                                            cache = uniqueCache[ type ] || [];
                                            nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
                                            diff = nodeIndex;
                                        }

                                        // xml :nth-child(...)
                                        // or :nth-last-child(...) or :nth(-last)?-of-type(...)
                                        if ( diff === false ) {

                                            // Use the same loop as above to seek `elem` from the start
                                            while ( ( node = ++nodeIndex && node && node[ dir ] ||
                                                ( diff = nodeIndex = 0 ) || start.pop() ) ) {

                                                if ( ( ofType ?
                                                        node.nodeName.toLowerCase() === name :
                                                        node.nodeType === 1 ) &&
                                                    ++diff ) {

                                                    // Cache the index of each encountered element
                                                    if ( useCache ) {
                                                        outerCache = node[ expando ] ||
                                                            ( node[ expando ] = {} );

                                                        // Support: IE <9 only
                                                        // Defend against cloned attroperties (jQuery gh-1709)
                                                        uniqueCache = outerCache[ node.uniqueID ] ||
                                                            ( outerCache[ node.uniqueID ] = {} );

                                                        uniqueCache[ type ] = [ dirruns, diff ];
                                                    }

                                                    if ( node === elem ) {
                                                        break;
                                                    }
                                                }
                                            }
                                        }
                                    }

                                    // Incorporate the offset, then check against cycle size
                                    diff -= last;
                                    return diff === first || ( diff % first === 0 && diff / first >= 0 );
                                }
                            };
                    },

                    "PSEUDO": function( pseudo, argument ) {

                        // pseudo-class names are case-insensitive
                        // http://www.w3.org/TR/selectors/#pseudo-classes
                        // Prioritize by case sensitivity in case custom pseudos are added with uppercase letters
                        // Remember that setFilters inherits from pseudos
                        var args,
                            fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] ||
                                Sizzle.error( "unsupported pseudo: " + pseudo );

                        // The user may use createPseudo to indicate that
                        // arguments are needed to create the filter function
                        // just as Sizzle does
                        if ( fn[ expando ] ) {
                            return fn( argument );
                        }

                        // But maintain support for old signatures
                        if ( fn.length > 1 ) {
                            args = [ pseudo, pseudo, "", argument ];
                            return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ?
                                markFunction( function( seed, matches ) {
                                    var idx,
                                        matched = fn( seed, argument ),
                                        i = matched.length;
                                    while ( i-- ) {
                                        idx = indexOf( seed, matched[ i ] );
                                        seed[ idx ] = !( matches[ idx ] = matched[ i ] );
                                    }
                                } ) :
                                function( elem ) {
                                    return fn( elem, 0, args );
                                };
                        }

                        return fn;
                    }
                },

                pseudos: {

                    // Potentially complex pseudos
                    "not": markFunction( function( selector ) {

                        // Trim the selector passed to compile
                        // to avoid treating leading and trailing
                        // spaces as combinators
                        var input = [],
                            results = [],
                            matcher = compile( selector.replace( rtrim, "$1" ) );

                        return matcher[ expando ] ?
                            markFunction( function( seed, matches, _context, xml ) {
                                var elem,
                                    unmatched = matcher( seed, null, xml, [] ),
                                    i = seed.length;

                                // Match elements unmatched by `matcher`
                                while ( i-- ) {
                                    if ( ( elem = unmatched[ i ] ) ) {
                                        seed[ i ] = !( matches[ i ] = elem );
                                    }
                                }
                            } ) :
                            function( elem, _context, xml ) {
                                input[ 0 ] = elem;
                                matcher( input, null, xml, results );

                                // Don't keep the element (issue #299)
                                input[ 0 ] = null;
                                return !results.pop();
                            };
                    } ),

                    "has": markFunction( function( selector ) {
                        return function( elem ) {
                            return Sizzle( selector, elem ).length > 0;
                        };
                    } ),

                    "contains": markFunction( function( text ) {
                        text = text.replace( runescape, funescape );
                        return function( elem ) {
                            return ( elem.textContent || getText( elem ) ).indexOf( text ) > -1;
                        };
                    } ),

                    // "Whether an element is represented by a :lang() selector
                    // is based solely on the element's language value
                    // being equal to the identifier C,
                    // or beginning with the identifier C immediately followed by "-".
                    // The matching of C against the element's language value is performed case-insensitively.
                    // The identifier C does not have to be a valid language name."
                    // http://www.w3.org/TR/selectors/#lang-pseudo
                    "lang": markFunction( function( lang ) {

                        // lang value must be a valid identifier
                        if ( !ridentifier.test( lang || "" ) ) {
                            Sizzle.error( "unsupported lang: " + lang );
                        }
                        lang = lang.replace( runescape, funescape ).toLowerCase();
                        return function( elem ) {
                            var elemLang;
                            do {
                                if ( ( elemLang = documentIsHTML ?
                                    elem.lang :
                                    elem.getAttribute( "xml:lang" ) || elem.getAttribute( "lang" ) ) ) {

                                    elemLang = elemLang.toLowerCase();
                                    return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0;
                                }
                            } while ( ( elem = elem.parentNode ) && elem.nodeType === 1 );
                            return false;
                        };
                    } ),

                    // Miscellaneous
                    "target": function( elem ) {
                        var hash = window.location && window.location.hash;
                        return hash && hash.slice( 1 ) === elem.id;
                    },

                    "root": function( elem ) {
                        return elem === docElem;
                    },

                    "focus": function( elem ) {
                        return elem === document.activeElement &&
                            ( !document.hasFocus || document.hasFocus() ) &&
                            !!( elem.type || elem.href || ~elem.tabIndex );
                    },

                    // Boolean properties
                    "enabled": createDisabledPseudo( false ),
                    "disabled": createDisabledPseudo( true ),

                    "checked": function( elem ) {

                        // In CSS3, :checked should return both checked and selected elements
                        // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
                        var nodeName = elem.nodeName.toLowerCase();
                        return ( nodeName === "input" && !!elem.checked ) ||
                            ( nodeName === "option" && !!elem.selected );
                    },

                    "selected": function( elem ) {

                        // Accessing this property makes selected-by-default
                        // options in Safari work properly
                        if ( elem.parentNode ) {
                            // eslint-disable-next-line no-unused-expressions
                            elem.parentNode.selectedIndex;
                        }

                        return elem.selected === true;
                    },

                    // Contents
                    "empty": function( elem ) {

                        // http://www.w3.org/TR/selectors/#empty-pseudo
                        // :empty is negated by element (1) or content nodes (text: 3; cdata: 4; entity ref: 5),
                        //   but not by others (comment: 8; processing instruction: 7; etc.)
                        // nodeType < 6 works because attributes (2) do not appear as children
                        for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
                            if ( elem.nodeType < 6 ) {
                                return false;
                            }
                        }
                        return true;
                    },

                    "parent": function( elem ) {
                        return !Expr.pseudos[ "empty" ]( elem );
                    },

                    // Element/input types
                    "header": function( elem ) {
                        return rheader.test( elem.nodeName );
                    },

                    "input": function( elem ) {
                        return rinputs.test( elem.nodeName );
                    },

                    "button": function( elem ) {
                        var name = elem.nodeName.toLowerCase();
                        return name === "input" && elem.type === "button" || name === "button";
                    },

                    "text": function( elem ) {
                        var attr;
                        return elem.nodeName.toLowerCase() === "input" &&
                            elem.type === "text" &&

                            // Support: IE<8
                            // New HTML5 attribute values (e.g., "search") appear with elem.type === "text"
                            ( ( attr = elem.getAttribute( "type" ) ) == null ||
                                attr.toLowerCase() === "text" );
                    },

                    // Position-in-collection
                    "first": createPositionalPseudo( function() {
                        return [ 0 ];
                    } ),

                    "last": createPositionalPseudo( function( _matchIndexes, length ) {
                        return [ length - 1 ];
                    } ),

                    "eq": createPositionalPseudo( function( _matchIndexes, length, argument ) {
                        return [ argument < 0 ? argument + length : argument ];
                    } ),

                    "even": createPositionalPseudo( function( matchIndexes, length ) {
                        var i = 0;
                        for ( ; i < length; i += 2 ) {
                            matchIndexes.push( i );
                        }
                        return matchIndexes;
                    } ),

                    "odd": createPositionalPseudo( function( matchIndexes, length ) {
                        var i = 1;
                        for ( ; i < length; i += 2 ) {
                            matchIndexes.push( i );
                        }
                        return matchIndexes;
                    } ),

                    "lt": createPositionalPseudo( function( matchIndexes, length, argument ) {
                        var i = argument < 0 ?
                            argument + length :
                            argument > length ?
                                length :
                                argument;
                        for ( ; --i >= 0; ) {
                            matchIndexes.push( i );
                        }
                        return matchIndexes;
                    } ),

                    "gt": createPositionalPseudo( function( matchIndexes, length, argument ) {
                        var i = argument < 0 ? argument + length : argument;
                        for ( ; ++i < length; ) {
                            matchIndexes.push( i );
                        }
                        return matchIndexes;
                    } )
                }
            };

            Expr.pseudos[ "nth" ] = Expr.pseudos[ "eq" ];

// Add button/input type pseudos
            for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) {
                Expr.pseudos[ i ] = createInputPseudo( i );
            }
            for ( i in { submit: true, reset: true } ) {
                Expr.pseudos[ i ] = createButtonPseudo( i );
            }

// Easy API for creating new setFilters
            function setFilters() {}
            setFilters.prototype = Expr.filters = Expr.pseudos;
            Expr.setFilters = new setFilters();

            tokenize = Sizzle.tokenize = function( selector, parseOnly ) {
                var matched, match, tokens, type,
                    soFar, groups, preFilters,
                    cached = tokenCache[ selector + " " ];

                if ( cached ) {
                    return parseOnly ? 0 : cached.slice( 0 );
                }

                soFar = selector;
                groups = [];
                preFilters = Expr.preFilter;

                while ( soFar ) {

                    // Comma and first run
                    if ( !matched || ( match = rcomma.exec( soFar ) ) ) {
                        if ( match ) {

                            // Don't consume trailing commas as valid
                            soFar = soFar.slice( match[ 0 ].length ) || soFar;
                        }
                        groups.push( ( tokens = [] ) );
                    }

                    matched = false;

                    // Combinators
                    if ( ( match = rcombinators.exec( soFar ) ) ) {
                        matched = match.shift();
                        tokens.push( {
                            value: matched,

                            // Cast descendant combinators to space
                            type: match[ 0 ].replace( rtrim, " " )
                        } );
                        soFar = soFar.slice( matched.length );
                    }

                    // Filters
                    for ( type in Expr.filter ) {
                        if ( ( match = matchExpr[ type ].exec( soFar ) ) && ( !preFilters[ type ] ||
                            ( match = preFilters[ type ]( match ) ) ) ) {
                            matched = match.shift();
                            tokens.push( {
                                value: matched,
                                type: type,
                                matches: match
                            } );
                            soFar = soFar.slice( matched.length );
                        }
                    }

                    if ( !matched ) {
                        break;
                    }
                }

                // Return the length of the invalid excess
                // if we're just parsing
                // Otherwise, throw an error or return tokens
                return parseOnly ?
                    soFar.length :
                    soFar ?
                        Sizzle.error( selector ) :

                        // Cache the tokens
                        tokenCache( selector, groups ).slice( 0 );
            };

            function toSelector( tokens ) {
                var i = 0,
                    len = tokens.length,
                    selector = "";
                for ( ; i < len; i++ ) {
                    selector += tokens[ i ].value;
                }
                return selector;
            }

            function addCombinator( matcher, combinator, base ) {
                var dir = combinator.dir,
                    skip = combinator.next,
                    key = skip || dir,
                    checkNonElements = base && key === "parentNode",
                    doneName = done++;

                return combinator.first ?

                    // Check against closest ancestor/preceding element
                    function( elem, context, xml ) {
                        while ( ( elem = elem[ dir ] ) ) {
                            if ( elem.nodeType === 1 || checkNonElements ) {
                                return matcher( elem, context, xml );
                            }
                        }
                        return false;
                    } :

                    // Check against all ancestor/preceding elements
                    function( elem, context, xml ) {
                        var oldCache, uniqueCache, outerCache,
                            newCache = [ dirruns, doneName ];

                        // We can't set arbitrary data on XML nodes, so they don't benefit from combinator caching
                        if ( xml ) {
                            while ( ( elem = elem[ dir ] ) ) {
                                if ( elem.nodeType === 1 || checkNonElements ) {
                                    if ( matcher( elem, context, xml ) ) {
                                        return true;
                                    }
                                }
                            }
                        } else {
                            while ( ( elem = elem[ dir ] ) ) {
                                if ( elem.nodeType === 1 || checkNonElements ) {
                                    outerCache = elem[ expando ] || ( elem[ expando ] = {} );

                                    // Support: IE <9 only
                                    // Defend against cloned attroperties (jQuery gh-1709)
                                    uniqueCache = outerCache[ elem.uniqueID ] ||
                                        ( outerCache[ elem.uniqueID ] = {} );

                                    if ( skip && skip === elem.nodeName.toLowerCase() ) {
                                        elem = elem[ dir ] || elem;
                                    } else if ( ( oldCache = uniqueCache[ key ] ) &&
                                        oldCache[ 0 ] === dirruns && oldCache[ 1 ] === doneName ) {

                                        // Assign to newCache so results back-propagate to previous elements
                                        return ( newCache[ 2 ] = oldCache[ 2 ] );
                                    } else {

                                        // Reuse newcache so results back-propagate to previous elements
                                        uniqueCache[ key ] = newCache;

                                        // A match means we're done; a fail means we have to keep checking
                                        if ( ( newCache[ 2 ] = matcher( elem, context, xml ) ) ) {
                                            return true;
                                        }
                                    }
                                }
                            }
                        }
                        return false;
                    };
            }

            function elementMatcher( matchers ) {
                return matchers.length > 1 ?
                    function( elem, context, xml ) {
                        var i = matchers.length;
                        while ( i-- ) {
                            if ( !matchers[ i ]( elem, context, xml ) ) {
                                return false;
                            }
                        }
                        return true;
                    } :
                    matchers[ 0 ];
            }

            function multipleContexts( selector, contexts, results ) {
                var i = 0,
                    len = contexts.length;
                for ( ; i < len; i++ ) {
                    Sizzle( selector, contexts[ i ], results );
                }
                return results;
            }

            function condense( unmatched, map, filter, context, xml ) {
                var elem,
                    newUnmatched = [],
                    i = 0,
                    len = unmatched.length,
                    mapped = map != null;

                for ( ; i < len; i++ ) {
                    if ( ( elem = unmatched[ i ] ) ) {
                        if ( !filter || filter( elem, context, xml ) ) {
                            newUnmatched.push( elem );
                            if ( mapped ) {
                                map.push( i );
                            }
                        }
                    }
                }

                return newUnmatched;
            }

            function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) {
                if ( postFilter && !postFilter[ expando ] ) {
                    postFilter = setMatcher( postFilter );
                }
                if ( postFinder && !postFinder[ expando ] ) {
                    postFinder = setMatcher( postFinder, postSelector );
                }
                return markFunction( function( seed, results, context, xml ) {
                    var temp, i, elem,
                        preMap = [],
                        postMap = [],
                        preexisting = results.length,

                        // Get initial elements from seed or context
                        elems = seed || multipleContexts(
                            selector || "*",
                            context.nodeType ? [ context ] : context,
                            []
                        ),

                        // Prefilter to get matcher input, preserving a map for seed-results synchronization
                        matcherIn = preFilter && ( seed || !selector ) ?
                            condense( elems, preMap, preFilter, context, xml ) :
                            elems,

                        matcherOut = matcher ?

                            // If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results,
                            postFinder || ( seed ? preFilter : preexisting || postFilter ) ?

                                // ...intermediate processing is necessary
                                [] :

                                // ...otherwise use results directly
                                results :
                            matcherIn;

                    // Find primary matches
                    if ( matcher ) {
                        matcher( matcherIn, matcherOut, context, xml );
                    }

                    // Apply postFilter
                    if ( postFilter ) {
                        temp = condense( matcherOut, postMap );
                        postFilter( temp, [], context, xml );

                        // Un-match failing elements by moving them back to matcherIn
                        i = temp.length;
                        while ( i-- ) {
                            if ( ( elem = temp[ i ] ) ) {
                                matcherOut[ postMap[ i ] ] = !( matcherIn[ postMap[ i ] ] = elem );
                            }
                        }
                    }

                    if ( seed ) {
                        if ( postFinder || preFilter ) {
                            if ( postFinder ) {

                                // Get the final matcherOut by condensing this intermediate into postFinder contexts
                                temp = [];
                                i = matcherOut.length;
                                while ( i-- ) {
                                    if ( ( elem = matcherOut[ i ] ) ) {

                                        // Restore matcherIn since elem is not yet a final match
                                        temp.push( ( matcherIn[ i ] = elem ) );
                                    }
                                }
                                postFinder( null, ( matcherOut = [] ), temp, xml );
                            }

                            // Move matched elements from seed to results to keep them synchronized
                            i = matcherOut.length;
                            while ( i-- ) {
                                if ( ( elem = matcherOut[ i ] ) &&
                                    ( temp = postFinder ? indexOf( seed, elem ) : preMap[ i ] ) > -1 ) {

                                    seed[ temp ] = !( results[ temp ] = elem );
                                }
                            }
                        }

                        // Add elements to results, through postFinder if defined
                    } else {
                        matcherOut = condense(
                            matcherOut === results ?
                                matcherOut.splice( preexisting, matcherOut.length ) :
                                matcherOut
                        );
                        if ( postFinder ) {
                            postFinder( null, results, matcherOut, xml );
                        } else {
                            push.apply( results, matcherOut );
                        }
                    }
                } );
            }

            function matcherFromTokens( tokens ) {
                var checkContext, matcher, j,
                    len = tokens.length,
                    leadingRelative = Expr.relative[ tokens[ 0 ].type ],
                    implicitRelative = leadingRelative || Expr.relative[ " " ],
                    i = leadingRelative ? 1 : 0,

                    // The foundational matcher ensures that elements are reachable from top-level context(s)
                    matchContext = addCombinator( function( elem ) {
                        return elem === checkContext;
                    }, implicitRelative, true ),
                    matchAnyContext = addCombinator( function( elem ) {
                        return indexOf( checkContext, elem ) > -1;
                    }, implicitRelative, true ),
                    matchers = [ function( elem, context, xml ) {
                        var ret = ( !leadingRelative && ( xml || context !== outermostContext ) ) || (
                            ( checkContext = context ).nodeType ?
                                matchContext( elem, context, xml ) :
                                matchAnyContext( elem, context, xml ) );

                        // Avoid hanging onto element (issue #299)
                        checkContext = null;
                        return ret;
                    } ];

                for ( ; i < len; i++ ) {
                    if ( ( matcher = Expr.relative[ tokens[ i ].type ] ) ) {
                        matchers = [ addCombinator( elementMatcher( matchers ), matcher ) ];
                    } else {
                        matcher = Expr.filter[ tokens[ i ].type ].apply( null, tokens[ i ].matches );

                        // Return special upon seeing a positional matcher
                        if ( matcher[ expando ] ) {

                            // Find the next relative operator (if any) for proper handling
                            j = ++i;
                            for ( ; j < len; j++ ) {
                                if ( Expr.relative[ tokens[ j ].type ] ) {
                                    break;
                                }
                            }
                            return setMatcher(
                                i > 1 && elementMatcher( matchers ),
                                i > 1 && toSelector(

                                    // If the preceding token was a descendant combinator, insert an implicit any-element `*`
                                    tokens
                                        .slice( 0, i - 1 )
                                        .concat( { value: tokens[ i - 2 ].type === " " ? "*" : "" } )
                                ).replace( rtrim, "$1" ),
                                matcher,
                                i < j && matcherFromTokens( tokens.slice( i, j ) ),
                                j < len && matcherFromTokens( ( tokens = tokens.slice( j ) ) ),
                                j < len && toSelector( tokens )
                            );
                        }
                        matchers.push( matcher );
                    }
                }

                return elementMatcher( matchers );
            }

            function matcherFromGroupMatchers( elementMatchers, setMatchers ) {
                var bySet = setMatchers.length > 0,
                    byElement = elementMatchers.length > 0,
                    superMatcher = function( seed, context, xml, results, outermost ) {
                        var elem, j, matcher,
                            matchedCount = 0,
                            i = "0",
                            unmatched = seed && [],
                            setMatched = [],
                            contextBackup = outermostContext,

                            // We must always have either seed elements or outermost context
                            elems = seed || byElement && Expr.find[ "TAG" ]( "*", outermost ),

                            // Use integer dirruns iff this is the outermost matcher
                            dirrunsUnique = ( dirruns += contextBackup == null ? 1 : Math.random() || 0.1 ),
                            len = elems.length;

                        if ( outermost ) {

                            // Support: IE 11+, Edge 17 - 18+
                            // IE/Edge sometimes throw a "Permission denied" error when strict-comparing
                            // two documents; shallow comparisons work.
                            // eslint-disable-next-line eqeqeq
                            outermostContext = context == document || context || outermost;
                        }

                        // Add elements passing elementMatchers directly to results
                        // Support: IE<9, Safari
                        // Tolerate NodeList properties (IE: "length"; Safari: <number>) matching elements by id
                        for ( ; i !== len && ( elem = elems[ i ] ) != null; i++ ) {
                            if ( byElement && elem ) {
                                j = 0;

                                // Support: IE 11+, Edge 17 - 18+
                                // IE/Edge sometimes throw a "Permission denied" error when strict-comparing
                                // two documents; shallow comparisons work.
                                // eslint-disable-next-line eqeqeq
                                if ( !context && elem.ownerDocument != document ) {
                                    setDocument( elem );
                                    xml = !documentIsHTML;
                                }
                                while ( ( matcher = elementMatchers[ j++ ] ) ) {
                                    if ( matcher( elem, context || document, xml ) ) {
                                        results.push( elem );
                                        break;
                                    }
                                }
                                if ( outermost ) {
                                    dirruns = dirrunsUnique;
                                }
                            }

                            // Track unmatched elements for set filters
                            if ( bySet ) {

                                // They will have gone through all possible matchers
                                if ( ( elem = !matcher && elem ) ) {
                                    matchedCount--;
                                }

                                // Lengthen the array for every element, matched or not
                                if ( seed ) {
                                    unmatched.push( elem );
                                }
                            }
                        }

                        // `i` is now the count of elements visited above, and adding it to `matchedCount`
                        // makes the latter nonnegative.
                        matchedCount += i;

                        // Apply set filters to unmatched elements
                        // NOTE: This can be skipped if there are no unmatched elements (i.e., `matchedCount`
                        // equals `i`), unless we didn't visit _any_ elements in the above loop because we have
                        // no element matchers and no seed.
                        // Incrementing an initially-string "0" `i` allows `i` to remain a string only in that
                        // case, which will result in a "00" `matchedCount` that differs from `i` but is also
                        // numerically zero.
                        if ( bySet && i !== matchedCount ) {
                            j = 0;
                            while ( ( matcher = setMatchers[ j++ ] ) ) {
                                matcher( unmatched, setMatched, context, xml );
                            }

                            if ( seed ) {

                                // Reintegrate element matches to eliminate the need for sorting
                                if ( matchedCount > 0 ) {
                                    while ( i-- ) {
                                        if ( !( unmatched[ i ] || setMatched[ i ] ) ) {
                                            setMatched[ i ] = pop.call( results );
                                        }
                                    }
                                }

                                // Discard index placeholder values to get only actual matches
                                setMatched = condense( setMatched );
                            }

                            // Add matches to results
                            push.apply( results, setMatched );

                            // Seedless set matches succeeding multiple successful matchers stipulate sorting
                            if ( outermost && !seed && setMatched.length > 0 &&
                                ( matchedCount + setMatchers.length ) > 1 ) {

                                Sizzle.uniqueSort( results );
                            }
                        }

                        // Override manipulation of globals by nested matchers
                        if ( outermost ) {
                            dirruns = dirrunsUnique;
                            outermostContext = contextBackup;
                        }

                        return unmatched;
                    };

                return bySet ?
                    markFunction( superMatcher ) :
                    superMatcher;
            }

            compile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) {
                var i,
                    setMatchers = [],
                    elementMatchers = [],
                    cached = compilerCache[ selector + " " ];

                if ( !cached ) {

                    // Generate a function of recursive functions that can be used to check each element
                    if ( !match ) {
                        match = tokenize( selector );
                    }
                    i = match.length;
                    while ( i-- ) {
                        cached = matcherFromTokens( match[ i ] );
                        if ( cached[ expando ] ) {
                            setMatchers.push( cached );
                        } else {
                            elementMatchers.push( cached );
                        }
                    }

                    // Cache the compiled function
                    cached = compilerCache(
                        selector,
                        matcherFromGroupMatchers( elementMatchers, setMatchers )
                    );

                    // Save selector and tokenization
                    cached.selector = selector;
                }
                return cached;
            };

            /**
             * A low-level selection function that works with Sizzle's compiled
             *  selector functions
             * @param {String|Function} selector A selector or a pre-compiled
             *  selector function built with Sizzle.compile
             * @param {Element} context
             * @param {Array} [results]
             * @param {Array} [seed] A set of elements to match against
             */
            select = Sizzle.select = function( selector, context, results, seed ) {
                var i, tokens, token, type, find,
                    compiled = typeof selector === "function" && selector,
                    match = !seed && tokenize( ( selector = compiled.selector || selector ) );

                results = results || [];

                // Try to minimize operations if there is only one selector in the list and no seed
                // (the latter of which guarantees us context)
                if ( match.length === 1 ) {

                    // Reduce context if the leading compound selector is an ID
                    tokens = match[ 0 ] = match[ 0 ].slice( 0 );
                    if ( tokens.length > 2 && ( token = tokens[ 0 ] ).type === "ID" &&
                        context.nodeType === 9 && documentIsHTML && Expr.relative[ tokens[ 1 ].type ] ) {

                        context = ( Expr.find[ "ID" ]( token.matches[ 0 ]
                            .replace( runescape, funescape ), context ) || [] )[ 0 ];
                        if ( !context ) {
                            return results;

                            // Precompiled matchers will still verify ancestry, so step up a level
                        } else if ( compiled ) {
                            context = context.parentNode;
                        }

                        selector = selector.slice( tokens.shift().value.length );
                    }

                    // Fetch a seed set for right-to-left matching
                    i = matchExpr[ "needsContext" ].test( selector ) ? 0 : tokens.length;
                    while ( i-- ) {
                        token = tokens[ i ];

                        // Abort if we hit a combinator
                        if ( Expr.relative[ ( type = token.type ) ] ) {
                            break;
                        }
                        if ( ( find = Expr.find[ type ] ) ) {

                            // Search, expanding context for leading sibling combinators
                            if ( ( seed = find(
                                token.matches[ 0 ].replace( runescape, funescape ),
                                rsibling.test( tokens[ 0 ].type ) && testContext( context.parentNode ) ||
                                context
                            ) ) ) {

                                // If seed is empty or no tokens remain, we can return early
                                tokens.splice( i, 1 );
                                selector = seed.length && toSelector( tokens );
                                if ( !selector ) {
                                    push.apply( results, seed );
                                    return results;
                                }

                                break;
                            }
                        }
                    }
                }

                // Compile and execute a filtering function if one is not provided
                // Provide `match` to avoid retokenization if we modified the selector above
                ( compiled || compile( selector, match ) )(
                    seed,
                    context,
                    !documentIsHTML,
                    results,
                    !context || rsibling.test( selector ) && testContext( context.parentNode ) || context
                );
                return results;
            };

// One-time assignments

// Sort stability
            support.sortStable = expando.split( "" ).sort( sortOrder ).join( "" ) === expando;

// Support: Chrome 14-35+
// Always assume duplicates if they aren't passed to the comparison function
            support.detectDuplicates = !!hasDuplicate;

// Initialize against the default document
            setDocument();

// Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27)
// Detached nodes confoundingly follow *each other*
            support.sortDetached = assert( function( el ) {

                // Should return 1, but returns 4 (following)
                return el.compareDocumentPosition( document.createElement( "fieldset" ) ) & 1;
            } );

// Support: IE<8
// Prevent attribute/property "interpolation"
// https://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
            if ( !assert( function( el ) {
                el.innerHTML = "<a href='#'></a>";
                return el.firstChild.getAttribute( "href" ) === "#";
            } ) ) {
                addHandle( "type|href|height|width", function( elem, name, isXML ) {
                    if ( !isXML ) {
                        return elem.getAttribute( name, name.toLowerCase() === "type" ? 1 : 2 );
                    }
                } );
            }

// Support: IE<9
// Use defaultValue in place of getAttribute("value")
            if ( !support.attributes || !assert( function( el ) {
                el.innerHTML = "<input/>";
                el.firstChild.setAttribute( "value", "" );
                return el.firstChild.getAttribute( "value" ) === "";
            } ) ) {
                addHandle( "value", function( elem, _name, isXML ) {
                    if ( !isXML && elem.nodeName.toLowerCase() === "input" ) {
                        return elem.defaultValue;
                    }
                } );
            }

// Support: IE<9
// Use getAttributeNode to fetch booleans when getAttribute lies
            if ( !assert( function( el ) {
                return el.getAttribute( "disabled" ) == null;
            } ) ) {
                addHandle( booleans, function( elem, name, isXML ) {
                    var val;
                    if ( !isXML ) {
                        return elem[ name ] === true ? name.toLowerCase() :
                            ( val = elem.getAttributeNode( name ) ) && val.specified ?
                                val.value :
                                null;
                    }
                } );
            }

            return Sizzle;

        } )( window );



    jQuery.find = Sizzle;
    jQuery.expr = Sizzle.selectors;

// Deprecated
    jQuery.expr[ ":" ] = jQuery.expr.pseudos;
    jQuery.uniqueSort = jQuery.unique = Sizzle.uniqueSort;
    jQuery.text = Sizzle.getText;
    jQuery.isXMLDoc = Sizzle.isXML;
    jQuery.contains = Sizzle.contains;
    jQuery.escapeSelector = Sizzle.escape;




    var dir = function( elem, dir, until ) {
        var matched = [],
            truncate = until !== undefined;

        while ( ( elem = elem[ dir ] ) && elem.nodeType !== 9 ) {
            if ( elem.nodeType === 1 ) {
                if ( truncate && jQuery( elem ).is( until ) ) {
                    break;
                }
                matched.push( elem );
            }
        }
        return matched;
    };


    var siblings = function( n, elem ) {
        var matched = [];

        for ( ; n; n = n.nextSibling ) {
            if ( n.nodeType === 1 && n !== elem ) {
                matched.push( n );
            }
        }

        return matched;
    };


    var rneedsContext = jQuery.expr.match.needsContext;



    function nodeName( elem, name ) {

        return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();

    }
    var rsingleTag = ( /^<([a-z][^\/\0>:\x20\t\r\n\f]*)[\x20\t\r\n\f]*\/?>(?:<\/\1>|)$/i );



// Implement the identical functionality for filter and not
    function winnow( elements, qualifier, not ) {
        if ( isFunction( qualifier ) ) {
            return jQuery.grep( elements, function( elem, i ) {
                return !!qualifier.call( elem, i, elem ) !== not;
            } );
        }

        // Single element
        if ( qualifier.nodeType ) {
            return jQuery.grep( elements, function( elem ) {
                return ( elem === qualifier ) !== not;
            } );
        }

        // Arraylike of elements (jQuery, arguments, Array)
        if ( typeof qualifier !== "string" ) {
            return jQuery.grep( elements, function( elem ) {
                return ( indexOf.call( qualifier, elem ) > -1 ) !== not;
            } );
        }

        // Filtered directly for both simple and complex selectors
        return jQuery.filter( qualifier, elements, not );
    }

    jQuery.filter = function( expr, elems, not ) {
        var elem = elems[ 0 ];

        if ( not ) {
            expr = ":not(" + expr + ")";
        }

        if ( elems.length === 1 && elem.nodeType === 1 ) {
            return jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : [];
        }

        return jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) {
            return elem.nodeType === 1;
        } ) );
    };

    jQuery.fn.extend( {
        find: function( selector ) {
            var i, ret,
                len = this.length,
                self = this;

            if ( typeof selector !== "string" ) {
                return this.pushStack( jQuery( selector ).filter( function() {
                    for ( i = 0; i < len; i++ ) {
                        if ( jQuery.contains( self[ i ], this ) ) {
                            return true;
                        }
                    }
                } ) );
            }

            ret = this.pushStack( [] );

            for ( i = 0; i < len; i++ ) {
                jQuery.find( selector, self[ i ], ret );
            }

            return len > 1 ? jQuery.uniqueSort( ret ) : ret;
        },
        filter: function( selector ) {
            return this.pushStack( winnow( this, selector || [], false ) );
        },
        not: function( selector ) {
            return this.pushStack( winnow( this, selector || [], true ) );
        },
        is: function( selector ) {
            return !!winnow(
                this,

                // If this is a positional/relative selector, check membership in the returned set
                // so $("p:first").is("p:last") won't return true for a doc with two "p".
                typeof selector === "string" && rneedsContext.test( selector ) ?
                    jQuery( selector ) :
                    selector || [],
                false
            ).length;
        }
    } );


// Initialize a jQuery object


// A central reference to the root jQuery(document)
    var rootjQuery,

        // A simple way to check for HTML strings
        // Prioritize #id over <tag> to avoid XSS via location.hash (#9521)
        // Strict HTML recognition (#11290: must start with <)
        // Shortcut simple #id case for speed
        rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]+))$/,

        init = jQuery.fn.init = function( selector, context, root ) {
            var match, elem;

            // HANDLE: $(""), $(null), $(undefined), $(false)
            if ( !selector ) {
                return this;
            }

            // Method init() accepts an alternate rootjQuery
            // so migrate can support jQuery.sub (gh-2101)
            root = root || rootjQuery;

            // Handle HTML strings
            if ( typeof selector === "string" ) {
                if ( selector[ 0 ] === "<" &&
                    selector[ selector.length - 1 ] === ">" &&
                    selector.length >= 3 ) {

                    // Assume that strings that start and end with <> are HTML and skip the regex check
                    match = [ null, selector, null ];

                } else {
                    match = rquickExpr.exec( selector );
                }

                // Match html or make sure no context is specified for #id
                if ( match && ( match[ 1 ] || !context ) ) {

                    // HANDLE: $(html) -> $(array)
                    if ( match[ 1 ] ) {
                        context = context instanceof jQuery ? context[ 0 ] : context;

                        // Option to run scripts is true for back-compat
                        // Intentionally let the error be thrown if parseHTML is not present
                        jQuery.merge( this, jQuery.parseHTML(
                            match[ 1 ],
                            context && context.nodeType ? context.ownerDocument || context : document,
                            true
                        ) );

                        // HANDLE: $(html, props)
                        if ( rsingleTag.test( match[ 1 ] ) && jQuery.isPlainObject( context ) ) {
                            for ( match in context ) {

                                // Properties of context are called as methods if possible
                                if ( isFunction( this[ match ] ) ) {
                                    this[ match ]( context[ match ] );

                                    // ...and otherwise set as attributes
                                } else {
                                    this.attr( match, context[ match ] );
                                }
                            }
                        }

                        return this;

                        // HANDLE: $(#id)
                    } else {
                        elem = document.getElementById( match[ 2 ] );

                        if ( elem ) {

                            // Inject the element directly into the jQuery object
                            this[ 0 ] = elem;
                            this.length = 1;
                        }
                        return this;
                    }

                    // HANDLE: $(expr, $(...))
                } else if ( !context || context.jquery ) {
                    return ( context || root ).find( selector );

                    // HANDLE: $(expr, context)
                    // (which is just equivalent to: $(context).find(expr)
                } else {
                    return this.constructor( context ).find( selector );
                }

                // HANDLE: $(DOMElement)
            } else if ( selector.nodeType ) {
                this[ 0 ] = selector;
                this.length = 1;
                return this;

                // HANDLE: $(function)
                // Shortcut for document ready
            } else if ( isFunction( selector ) ) {
                return root.ready !== undefined ?
                    root.ready( selector ) :

                    // Execute immediately if ready is not present
                    selector( jQuery );
            }

            return jQuery.makeArray( selector, this );
        };

// Give the init function the jQuery prototype for later instantiation
    init.prototype = jQuery.fn;

// Initialize central reference
    rootjQuery = jQuery( document );


    var rparentsprev = /^(?:parents|prev(?:Until|All))/,

        // Methods guaranteed to produce a unique set when starting from a unique set
        guaranteedUnique = {
            children: true,
            contents: true,
            next: true,
            prev: true
        };

    jQuery.fn.extend( {
        has: function( target ) {
            var targets = jQuery( target, this ),
                l = targets.length;

            return this.filter( function() {
                var i = 0;
                for ( ; i < l; i++ ) {
                    if ( jQuery.contains( this, targets[ i ] ) ) {
                        return true;
                    }
                }
            } );
        },

        closest: function( selectors, context ) {
            var cur,
                i = 0,
                l = this.length,
                matched = [],
                targets = typeof selectors !== "string" && jQuery( selectors );

            // Positional selectors never match, since there's no _selection_ context
            if ( !rneedsContext.test( selectors ) ) {
                for ( ; i < l; i++ ) {
                    for ( cur = this[ i ]; cur && cur !== context; cur = cur.parentNode ) {

                        // Always skip document fragments
                        if ( cur.nodeType < 11 && ( targets ?
                            targets.index( cur ) > -1 :

                            // Don't pass non-elements to Sizzle
                            cur.nodeType === 1 &&
                            jQuery.find.matchesSelector( cur, selectors ) ) ) {

                            matched.push( cur );
                            break;
                        }
                    }
                }
            }

            return this.pushStack( matched.length > 1 ? jQuery.uniqueSort( matched ) : matched );
        },

        // Determine the position of an element within the set
        index: function( elem ) {

            // No argument, return index in parent
            if ( !elem ) {
                return ( this[ 0 ] && this[ 0 ].parentNode ) ? this.first().prevAll().length : -1;
            }

            // Index in selector
            if ( typeof elem === "string" ) {
                return indexOf.call( jQuery( elem ), this[ 0 ] );
            }

            // Locate the position of the desired element
            return indexOf.call( this,

                // If it receives a jQuery object, the first element is used
                elem.jquery ? elem[ 0 ] : elem
            );
        },

        add: function( selector, context ) {
            return this.pushStack(
                jQuery.uniqueSort(
                    jQuery.merge( this.get(), jQuery( selector, context ) )
                )
            );
        },

        addBack: function( selector ) {
            return this.add( selector == null ?
                this.prevObject : this.prevObject.filter( selector )
            );
        }
    } );

    function sibling( cur, dir ) {
        while ( ( cur = cur[ dir ] ) && cur.nodeType !== 1 ) {}
        return cur;
    }

    jQuery.each( {
        parent: function( elem ) {
            var parent = elem.parentNode;
            return parent && parent.nodeType !== 11 ? parent : null;
        },
        parents: function( elem ) {
            return dir( elem, "parentNode" );
        },
        parentsUntil: function( elem, _i, until ) {
            return dir( elem, "parentNode", until );
        },
        next: function( elem ) {
            return sibling( elem, "nextSibling" );
        },
        prev: function( elem ) {
            return sibling( elem, "previousSibling" );
        },
        nextAll: function( elem ) {
            return dir( elem, "nextSibling" );
        },
        prevAll: function( elem ) {
            return dir( elem, "previousSibling" );
        },
        nextUntil: function( elem, _i, until ) {
            return dir( elem, "nextSibling", until );
        },
        prevUntil: function( elem, _i, until ) {
            return dir( elem, "previousSibling", until );
        },
        siblings: function( elem ) {
            return siblings( ( elem.parentNode || {} ).firstChild, elem );
        },
        children: function( elem ) {
            return siblings( elem.firstChild );
        },
        contents: function( elem ) {
            if ( elem.contentDocument != null &&

                // Support: IE 11+
                // <object> elements with no `data` attribute has an object
                // `contentDocument` with a `null` prototype.
                getProto( elem.contentDocument ) ) {

                return elem.contentDocument;
            }

            // Support: IE 9 - 11 only, iOS 7 only, Android Browser <=4.3 only
            // Treat the template element as a regular one in browsers that
            // don't support it.
            if ( nodeName( elem, "template" ) ) {
                elem = elem.content || elem;
            }

            return jQuery.merge( [], elem.childNodes );
        }
    }, function( name, fn ) {
        jQuery.fn[ name ] = function( until, selector ) {
            var matched = jQuery.map( this, fn, until );

            if ( name.slice( -5 ) !== "Until" ) {
                selector = until;
            }

            if ( selector && typeof selector === "string" ) {
                matched = jQuery.filter( selector, matched );
            }

            if ( this.length > 1 ) {

                // Remove duplicates
                if ( !guaranteedUnique[ name ] ) {
                    jQuery.uniqueSort( matched );
                }

                // Reverse order for parents* and prev-derivatives
                if ( rparentsprev.test( name ) ) {
                    matched.reverse();
                }
            }

            return this.pushStack( matched );
        };
    } );
    var rnothtmlwhite = ( /[^\x20\t\r\n\f]+/g );



// Convert String-formatted options into Object-formatted ones
    function createOptions( options ) {
        var object = {};
        jQuery.each( options.match( rnothtmlwhite ) || [], function( _, flag ) {
            object[ flag ] = true;
        } );
        return object;
    }

    /*
 * Create a callback list using the following parameters:
 *
 *	options: an optional list of space-separated options that will change how
 *			the callback list behaves or a more traditional option object
 *
 * By default a callback list will act like an event callback list and can be
 * "fired" multiple times.
 *
 * Possible options:
 *
 *	once:			will ensure the callback list can only be fired once (like a Deferred)
 *
 *	memory:			will keep track of previous values and will call any callback added
 *					after the list has been fired right away with the latest "memorized"
 *					values (like a Deferred)
 *
 *	unique:			will ensure a callback can only be added once (no duplicate in the list)
 *
 *	stopOnFalse:	interrupt callings when a callback returns false
 *
 */
    jQuery.Callbacks = function( options ) {

        // Convert options from String-formatted to Object-formatted if needed
        // (we check in cache first)
        options = typeof options === "string" ?
            createOptions( options ) :
            jQuery.extend( {}, options );

        var // Flag to know if list is currently firing
            firing,

            // Last fire value for non-forgettable lists
            memory,

            // Flag to know if list was already fired
            fired,

            // Flag to prevent firing
            locked,

            // Actual callback list
            list = [],

            // Queue of execution data for repeatable lists
            queue = [],

            // Index of currently firing callback (modified by add/remove as needed)
            firingIndex = -1,

            // Fire callbacks
            fire = function() {

                // Enforce single-firing
                locked = locked || options.once;

                // Execute callbacks for all pending executions,
                // respecting firingIndex overrides and runtime changes
                fired = firing = true;
                for ( ; queue.length; firingIndex = -1 ) {
                    memory = queue.shift();
                    while ( ++firingIndex < list.length ) {

                        // Run callback and check for early termination
                        if ( list[ firingIndex ].apply( memory[ 0 ], memory[ 1 ] ) === false &&
                            options.stopOnFalse ) {

                            // Jump to end and forget the data so .add doesn't re-fire
                            firingIndex = list.length;
                            memory = false;
                        }
                    }
                }

                // Forget the data if we're done with it
                if ( !options.memory ) {
                    memory = false;
                }

                firing = false;

                // Clean up if we're done firing for good
                if ( locked ) {

                    // Keep an empty list if we have data for future add calls
                    if ( memory ) {
                        list = [];

                        // Otherwise, this object is spent
                    } else {
                        list = "";
                    }
                }
            },

            // Actual Callbacks object
            self = {

                // Add a callback or a collection of callbacks to the list
                add: function() {
                    if ( list ) {

                        // If we have memory from a past run, we should fire after adding
                        if ( memory && !firing ) {
                            firingIndex = list.length - 1;
                            queue.push( memory );
                        }

                        ( function add( args ) {
                            jQuery.each( args, function( _, arg ) {
                                if ( isFunction( arg ) ) {
                                    if ( !options.unique || !self.has( arg ) ) {
                                        list.push( arg );
                                    }
                                } else if ( arg && arg.length && toType( arg ) !== "string" ) {

                                    // Inspect recursively
                                    add( arg );
                                }
                            } );
                        } )( arguments );

                        if ( memory && !firing ) {
                            fire();
                        }
                    }
                    return this;
                },

                // Remove a callback from the list
                remove: function() {
                    jQuery.each( arguments, function( _, arg ) {
                        var index;
                        while ( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) {
                            list.splice( index, 1 );

                            // Handle firing indexes
                            if ( index <= firingIndex ) {
                                firingIndex--;
                            }
                        }
                    } );
                    return this;
                },

                // Check if a given callback is in the list.
                // If no argument is given, return whether or not list has callbacks attached.
                has: function( fn ) {
                    return fn ?
                        jQuery.inArray( fn, list ) > -1 :
                        list.length > 0;
                },

                // Remove all callbacks from the list
                empty: function() {
                    if ( list ) {
                        list = [];
                    }
                    return this;
                },

                // Disable .fire and .add
                // Abort any current/pending executions
                // Clear all callbacks and values
                disable: function() {
                    locked = queue = [];
                    list = memory = "";
                    return this;
                },
                disabled: function() {
                    return !list;
                },

                // Disable .fire
                // Also disable .add unless we have memory (since it would have no effect)
                // Abort any pending executions
                lock: function() {
                    locked = queue = [];
                    if ( !memory && !firing ) {
                        list = memory = "";
                    }
                    return this;
                },
                locked: function() {
                    return !!locked;
                },

                // Call all callbacks with the given context and arguments
                fireWith: function( context, args ) {
                    if ( !locked ) {
                        args = args || [];
                        args = [ context, args.slice ? args.slice() : args ];
                        queue.push( args );
                        if ( !firing ) {
                            fire();
                        }
                    }
                    return this;
                },

                // Call all the callbacks with the given arguments
                fire: function() {
                    self.fireWith( this, arguments );
                    return this;
                },

                // To know if the callbacks have already been called at least once
                fired: function() {
                    return !!fired;
                }
            };

        return self;
    };


    function Identity( v ) {
        return v;
    }
    function Thrower( ex ) {
        throw ex;
    }

    function adoptValue( value, resolve, reject, noValue ) {
        var method;

        try {

            // Check for promise aspect first to privilege synchronous behavior
            if ( value && isFunction( ( method = value.promise ) ) ) {
                method.call( value ).done( resolve ).fail( reject );

                // Other thenables
            } else if ( value && isFunction( ( method = value.then ) ) ) {
                method.call( value, resolve, reject );

                // Other non-thenables
            } else {

                // Control `resolve` arguments by letting Array#slice cast boolean `noValue` to integer:
                // * false: [ value ].slice( 0 ) => resolve( value )
                // * true: [ value ].slice( 1 ) => resolve()
                resolve.apply( undefined, [ value ].slice( noValue ) );
            }

            // For Promises/A+, convert exceptions into rejections
            // Since jQuery.when doesn't unwrap thenables, we can skip the extra checks appearing in
            // Deferred#then to conditionally suppress rejection.
        } catch ( value ) {

            // Support: Android 4.0 only
            // Strict mode functions invoked without .call/.apply get global-object context
            reject.apply( undefined, [ value ] );
        }
    }

    jQuery.extend( {

        Deferred: function( func ) {
            var tuples = [

                    // action, add listener, callbacks,
                    // ... .then handlers, argument index, [final state]
                    [ "notify", "progress", jQuery.Callbacks( "memory" ),
                        jQuery.Callbacks( "memory" ), 2 ],
                    [ "resolve", "done", jQuery.Callbacks( "once memory" ),
                        jQuery.Callbacks( "once memory" ), 0, "resolved" ],
                    [ "reject", "fail", jQuery.Callbacks( "once memory" ),
                        jQuery.Callbacks( "once memory" ), 1, "rejected" ]
                ],
                state = "pending",
                promise = {
                    state: function() {
                        return state;
                    },
                    always: function() {
                        deferred.done( arguments ).fail( arguments );
                        return this;
                    },
                    "catch": function( fn ) {
                        return promise.then( null, fn );
                    },

                    // Keep pipe for back-compat
                    pipe: function( /* fnDone, fnFail, fnProgress */ ) {
                        var fns = arguments;

                        return jQuery.Deferred( function( newDefer ) {
                            jQuery.each( tuples, function( _i, tuple ) {

                                // Map tuples (progress, done, fail) to arguments (done, fail, progress)
                                var fn = isFunction( fns[ tuple[ 4 ] ] ) && fns[ tuple[ 4 ] ];

                                // deferred.progress(function() { bind to newDefer or newDefer.notify })
                                // deferred.done(function() { bind to newDefer or newDefer.resolve })
                                // deferred.fail(function() { bind to newDefer or newDefer.reject })
                                deferred[ tuple[ 1 ] ]( function() {
                                    var returned = fn && fn.apply( this, arguments );
                                    if ( returned && isFunction( returned.promise ) ) {
                                        returned.promise()
                                            .progress( newDefer.notify )
                                            .done( newDefer.resolve )
                                            .fail( newDefer.reject );
                                    } else {
                                        newDefer[ tuple[ 0 ] + "With" ](
                                            this,
                                            fn ? [ returned ] : arguments
                                        );
                                    }
                                } );
                            } );
                            fns = null;
                        } ).promise();
                    },
                    then: function( onFulfilled, onRejected, onProgress ) {
                        var maxDepth = 0;
                        function resolve( depth, deferred, handler, special ) {
                            return function() {
                                var that = this,
                                    args = arguments,
                                    mightThrow = function() {
                                        var returned, then;

                                        // Support: Promises/A+ section 2.3.3.3.3
                                        // https://promisesaplus.com/#point-59
                                        // Ignore double-resolution attempts
                                        if ( depth < maxDepth ) {
                                            return;
                                        }

                                        returned = handler.apply( that, args );

                                        // Support: Promises/A+ section 2.3.1
                                        // https://promisesaplus.com/#point-48
                                        if ( returned === deferred.promise() ) {
                                            throw new TypeError( "Thenable self-resolution" );
                                        }

                                        // Support: Promises/A+ sections 2.3.3.1, 3.5
                                        // https://promisesaplus.com/#point-54
                                        // https://promisesaplus.com/#point-75
                                        // Retrieve `then` only once
                                        then = returned &&

                                            // Support: Promises/A+ section 2.3.4
                                            // https://promisesaplus.com/#point-64
                                            // Only check objects and functions for thenability
                                            ( typeof returned === "object" ||
                                                typeof returned === "function" ) &&
                                            returned.then;

                                        // Handle a returned thenable
                                        if ( isFunction( then ) ) {

                                            // Special processors (notify) just wait for resolution
                                            if ( special ) {
                                                then.call(
                                                    returned,
                                                    resolve( maxDepth, deferred, Identity, special ),
                                                    resolve( maxDepth, deferred, Thrower, special )
                                                );

                                                // Normal processors (resolve) also hook into progress
                                            } else {

                                                // ...and disregard older resolution values
                                                maxDepth++;

                                                then.call(
                                                    returned,
                                                    resolve( maxDepth, deferred, Identity, special ),
                                                    resolve( maxDepth, deferred, Thrower, special ),
                                                    resolve( maxDepth, deferred, Identity,
                                                        deferred.notifyWith )
                                                );
                                            }

                                            // Handle all other returned values
                                        } else {

                                            // Only substitute handlers pass on context
                                            // and multiple values (non-spec behavior)
                                            if ( handler !== Identity ) {
                                                that = undefined;
                                                args = [ returned ];
                                            }

                                            // Process the value(s)
                                            // Default process is resolve
                                            ( special || deferred.resolveWith )( that, args );
                                        }
                                    },

                                    // Only normal processors (resolve) catch and reject exceptions
                                    process = special ?
                                        mightThrow :
                                        function() {
                                            try {
                                                mightThrow();
                                            } catch ( e ) {

                                                if ( jQuery.Deferred.exceptionHook ) {
                                                    jQuery.Deferred.exceptionHook( e,
                                                        process.stackTrace );
                                                }

                                                // Support: Promises/A+ section 2.3.3.3.4.1
                                                // https://promisesaplus.com/#point-61
                                                // Ignore post-resolution exceptions
                                                if ( depth + 1 >= maxDepth ) {

                                                    // Only substitute handlers pass on context
                                                    // and multiple values (non-spec behavior)
                                                    if ( handler !== Thrower ) {
                                                        that = undefined;
                                                        args = [ e ];
                                                    }

                                                    deferred.rejectWith( that, args );
                                                }
                                            }
                                        };

                                // Support: Promises/A+ section 2.3.3.3.1
                                // https://promisesaplus.com/#point-57
                                // Re-resolve promises immediately to dodge false rejection from
                                // subsequent errors
                                if ( depth ) {
                                    process();
                                } else {

                                    // Call an optional hook to record the stack, in case of exception
                                    // since it's otherwise lost when execution goes async
                                    if ( jQuery.Deferred.getStackHook ) {
                                        process.stackTrace = jQuery.Deferred.getStackHook();
                                    }
                                    window.setTimeout( process );
                                }
                            };
                        }

                        return jQuery.Deferred( function( newDefer ) {

                            // progress_handlers.add( ... )
                            tuples[ 0 ][ 3 ].add(
                                resolve(
                                    0,
                                    newDefer,
                                    isFunction( onProgress ) ?
                                        onProgress :
                                        Identity,
                                    newDefer.notifyWith
                                )
                            );

                            // fulfilled_handlers.add( ... )
                            tuples[ 1 ][ 3 ].add(
                                resolve(
                                    0,
                                    newDefer,
                                    isFunction( onFulfilled ) ?
                                        onFulfilled :
                                        Identity
                                )
                            );

                            // rejected_handlers.add( ... )
                            tuples[ 2 ][ 3 ].add(
                                resolve(
                                    0,
                                    newDefer,
                                    isFunction( onRejected ) ?
                                        onRejected :
                                        Thrower
                                )
                            );
                        } ).promise();
                    },

                    // Get a promise for this deferred
                    // If obj is provided, the promise aspect is added to the object
                    promise: function( obj ) {
                        return obj != null ? jQuery.extend( obj, promise ) : promise;
                    }
                },
                deferred = {};

            // Add list-specific methods
            jQuery.each( tuples, function( i, tuple ) {
                var list = tuple[ 2 ],
                    stateString = tuple[ 5 ];

                // promise.progress = list.add
                // promise.done = list.add
                // promise.fail = list.add
                promise[ tuple[ 1 ] ] = list.add;

                // Handle state
                if ( stateString ) {
                    list.add(
                        function() {

                            // state = "resolved" (i.e., fulfilled)
                            // state = "rejected"
                            state = stateString;
                        },

                        // rejected_callbacks.disable
                        // fulfilled_callbacks.disable
                        tuples[ 3 - i ][ 2 ].disable,

                        // rejected_handlers.disable
                        // fulfilled_handlers.disable
                        tuples[ 3 - i ][ 3 ].disable,

                        // progress_callbacks.lock
                        tuples[ 0 ][ 2 ].lock,

                        // progress_handlers.lock
                        tuples[ 0 ][ 3 ].lock
                    );
                }

                // progress_handlers.fire
                // fulfilled_handlers.fire
                // rejected_handlers.fire
                list.add( tuple[ 3 ].fire );

                // deferred.notify = function() { deferred.notifyWith(...) }
                // deferred.resolve = function() { deferred.resolveWith(...) }
                // deferred.reject = function() { deferred.rejectWith(...) }
                deferred[ tuple[ 0 ] ] = function() {
                    deferred[ tuple[ 0 ] + "With" ]( this === deferred ? undefined : this, arguments );
                    return this;
                };

                // deferred.notifyWith = list.fireWith
                // deferred.resolveWith = list.fireWith
                // deferred.rejectWith = list.fireWith
                deferred[ tuple[ 0 ] + "With" ] = list.fireWith;
            } );

            // Make the deferred a promise
            promise.promise( deferred );

            // Call given func if any
            if ( func ) {
                func.call( deferred, deferred );
            }

            // All done!
            return deferred;
        },

        // Deferred helper
        when: function( singleValue ) {
            var

                // count of uncompleted subordinates
                remaining = arguments.length,

                // count of unprocessed arguments
                i = remaining,

                // subordinate fulfillment data
                resolveContexts = Array( i ),
                resolveValues = slice.call( arguments ),

                // the primary Deferred
                primary = jQuery.Deferred(),

                // subordinate callback factory
                updateFunc = function( i ) {
                    return function( value ) {
                        resolveContexts[ i ] = this;
                        resolveValues[ i ] = arguments.length > 1 ? slice.call( arguments ) : value;
                        if ( !( --remaining ) ) {
                            primary.resolveWith( resolveContexts, resolveValues );
                        }
                    };
                };

            // Single- and empty arguments are adopted like Promise.resolve
            if ( remaining <= 1 ) {
                adoptValue( singleValue, primary.done( updateFunc( i ) ).resolve, primary.reject,
                    !remaining );

                // Use .then() to unwrap secondary thenables (cf. gh-3000)
                if ( primary.state() === "pending" ||
                    isFunction( resolveValues[ i ] && resolveValues[ i ].then ) ) {

                    return primary.then();
                }
            }

            // Multiple arguments are aggregated like Promise.all array elements
            while ( i-- ) {
                adoptValue( resolveValues[ i ], updateFunc( i ), primary.reject );
            }

            return primary.promise();
        }
    } );


// These usually indicate a programmer mistake during development,
// warn about them ASAP rather than swallowing them by default.
    var rerrorNames = /^(Eval|Internal|Range|Reference|Syntax|Type|URI)Error$/;

    jQuery.Deferred.exceptionHook = function( error, stack ) {

        // Support: IE 8 - 9 only
        // Console exists when dev tools are open, which can happen at any time
        if ( window.console && window.console.warn && error && rerrorNames.test( error.name ) ) {
            window.console.warn( "jQuery.Deferred exception: " + error.message, error.stack, stack );
        }
    };




    jQuery.readyException = function( error ) {
        window.setTimeout( function() {
            throw error;
        } );
    };




// The deferred used on DOM ready
    var readyList = jQuery.Deferred();

    jQuery.fn.ready = function( fn ) {

        readyList
            .then( fn )

            // Wrap jQuery.readyException in a function so that the lookup
            // happens at the time of error handling instead of callback
            // registration.
            .catch( function( error ) {
                jQuery.readyException( error );
            } );

        return this;
    };

    jQuery.extend( {

        // Is the DOM ready to be used? Set to true once it occurs.
        isReady: false,

        // A counter to track how many items to wait for before
        // the ready event fires. See #6781
        readyWait: 1,

        // Handle when the DOM is ready
        ready: function( wait ) {

            // Abort if there are pending holds or we're already ready
            if ( wait === true ? --jQuery.readyWait : jQuery.isReady ) {
                return;
            }

            // Remember that the DOM is ready
            jQuery.isReady = true;

            // If a normal DOM Ready event fired, decrement, and wait if need be
            if ( wait !== true && --jQuery.readyWait > 0 ) {
                return;
            }

            // If there are functions bound, to execute
            readyList.resolveWith( document, [ jQuery ] );
        }
    } );

    jQuery.ready.then = readyList.then;

// The ready event handler and self cleanup method
    function completed() {
        document.removeEventListener( "DOMContentLoaded", completed );
        window.removeEventListener( "load", completed );
        jQuery.ready();
    }

// Catch cases where $(document).ready() is called
// after the browser event has already occurred.
// Support: IE <=9 - 10 only
// Older IE sometimes signals "interactive" too soon
    if ( document.readyState === "complete" ||
        ( document.readyState !== "loading" && !document.documentElement.doScroll ) ) {

        // Handle it asynchronously to allow scripts the opportunity to delay ready
        window.setTimeout( jQuery.ready );

    } else {

        // Use the handy event callback
        document.addEventListener( "DOMContentLoaded", completed );

        // A fallback to window.onload, that will always work
        window.addEventListener( "load", completed );
    }




// Multifunctional method to get and set values of a collection
// The value/s can optionally be executed if it's a function
    var access = function( elems, fn, key, value, chainable, emptyGet, raw ) {
        var i = 0,
            len = elems.length,
            bulk = key == null;

        // Sets many values
        if ( toType( key ) === "object" ) {
            chainable = true;
            for ( i in key ) {
                access( elems, fn, i, key[ i ], true, emptyGet, raw );
            }

            // Sets one value
        } else if ( value !== undefined ) {
            chainable = true;

            if ( !isFunction( value ) ) {
                raw = true;
            }

            if ( bulk ) {

                // Bulk operations run against the entire set
                if ( raw ) {
                    fn.call( elems, value );
                    fn = null;

                    // ...except when executing function values
                } else {
                    bulk = fn;
                    fn = function( elem, _key, value ) {
                        return bulk.call( jQuery( elem ), value );
                    };
                }
            }

            if ( fn ) {
                for ( ; i < len; i++ ) {
                    fn(
                        elems[ i ], key, raw ?
                            value :
                            value.call( elems[ i ], i, fn( elems[ i ], key ) )
                    );
                }
            }
        }

        if ( chainable ) {
            return elems;
        }

        // Gets
        if ( bulk ) {
            return fn.call( elems );
        }

        return len ? fn( elems[ 0 ], key ) : emptyGet;
    };


// Matches dashed string for camelizing
    var rmsPrefix = /^-ms-/,
        rdashAlpha = /-([a-z])/g;

// Used by camelCase as callback to replace()
    function fcamelCase( _all, letter ) {
        return letter.toUpperCase();
    }

// Convert dashed to camelCase; used by the css and data modules
// Support: IE <=9 - 11, Edge 12 - 15
// Microsoft forgot to hump their vendor prefix (#9572)
    function camelCase( string ) {
        return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase );
    }
    var acceptData = function( owner ) {

        // Accepts only:
        //  - Node
        //    - Node.ELEMENT_NODE
        //    - Node.DOCUMENT_NODE
        //  - Object
        //    - Any
        return owner.nodeType === 1 || owner.nodeType === 9 || !( +owner.nodeType );
    };




    function Data() {
        this.expando = jQuery.expando + Data.uid++;
    }

    Data.uid = 1;

    Data.prototype = {

        cache: function( owner ) {

            // Check if the owner object already has a cache
            var value = owner[ this.expando ];

            // If not, create one
            if ( !value ) {
                value = {};

                // We can accept data for non-element nodes in modern browsers,
                // but we should not, see #8335.
                // Always return an empty object.
                if ( acceptData( owner ) ) {

                    // If it is a node unlikely to be stringify-ed or looped over
                    // use plain assignment
                    if ( owner.nodeType ) {
                        owner[ this.expando ] = value;

                        // Otherwise secure it in a non-enumerable property
                        // configurable must be true to allow the property to be
                        // deleted when data is removed
                    } else {
                        Object.defineProperty( owner, this.expando, {
                            value: value,
                            configurable: true
                        } );
                    }
                }
            }

            return value;
        },
        set: function( owner, data, value ) {
            var prop,
                cache = this.cache( owner );

            // Handle: [ owner, key, value ] args
            // Always use camelCase key (gh-2257)
            if ( typeof data === "string" ) {
                cache[ camelCase( data ) ] = value;

                // Handle: [ owner, { properties } ] args
            } else {

                // Copy the properties one-by-one to the cache object
                for ( prop in data ) {
                    cache[ camelCase( prop ) ] = data[ prop ];
                }
            }
            return cache;
        },
        get: function( owner, key ) {
            return key === undefined ?
                this.cache( owner ) :

                // Always use camelCase key (gh-2257)
                owner[ this.expando ] && owner[ this.expando ][ camelCase( key ) ];
        },
        access: function( owner, key, value ) {

            // In cases where either:
            //
            //   1. No key was specified
            //   2. A string key was specified, but no value provided
            //
            // Take the "read" path and allow the get method to determine
            // which value to return, respectively either:
            //
            //   1. The entire cache object
            //   2. The data stored at the key
            //
            if ( key === undefined ||
                ( ( key && typeof key === "string" ) && value === undefined ) ) {

                return this.get( owner, key );
            }

            // When the key is not a string, or both a key and value
            // are specified, set or extend (existing objects) with either:
            //
            //   1. An object of properties
            //   2. A key and value
            //
            this.set( owner, key, value );

            // Since the "set" path can have two possible entry points
            // return the expected data based on which path was taken[*]
            return value !== undefined ? value : key;
        },
        remove: function( owner, key ) {
            var i,
                cache = owner[ this.expando ];

            if ( cache === undefined ) {
                return;
            }

            if ( key !== undefined ) {

                // Support array or space separated string of keys
                if ( Array.isArray( key ) ) {

                    // If key is an array of keys...
                    // We always set camelCase keys, so remove that.
                    key = key.map( camelCase );
                } else {
                    key = camelCase( key );

                    // If a key with the spaces exists, use it.
                    // Otherwise, create an array by matching non-whitespace
                    key = key in cache ?
                        [ key ] :
                        ( key.match( rnothtmlwhite ) || [] );
                }

                i = key.length;

                while ( i-- ) {
                    delete cache[ key[ i ] ];
                }
            }

            // Remove the expando if there's no more data
            if ( key === undefined || jQuery.isEmptyObject( cache ) ) {

                // Support: Chrome <=35 - 45
                // Webkit & Blink performance suffers when deleting properties
                // from DOM nodes, so set to undefined instead
                // https://bugs.chromium.org/p/chromium/issues/detail?id=378607 (bug restricted)
                if ( owner.nodeType ) {
                    owner[ this.expando ] = undefined;
                } else {
                    delete owner[ this.expando ];
                }
            }
        },
        hasData: function( owner ) {
            var cache = owner[ this.expando ];
            return cache !== undefined && !jQuery.isEmptyObject( cache );
        }
    };
    var dataPriv = new Data();

    var dataUser = new Data();



//	Implementation Summary
//
//	1. Enforce API surface and semantic compatibility with 1.9.x branch
//	2. Improve the module's maintainability by reducing the storage
//		paths to a single mechanism.
//	3. Use the same single mechanism to support "private" and "user" data.
//	4. _Never_ expose "private" data to user code (TODO: Drop _data, _removeData)
//	5. Avoid exposing implementation details on user objects (eg. expando properties)
//	6. Provide a clear path for implementation upgrade to WeakMap in 2014

    var rbrace = /^(?:\{[\w\W]*\}|\[[\w\W]*\])$/,
        rmultiDash = /[A-Z]/g;

    function getData( data ) {
        if ( data === "true" ) {
            return true;
        }

        if ( data === "false" ) {
            return false;
        }

        if ( data === "null" ) {
            return null;
        }

        // Only convert to a number if it doesn't change the string
        if ( data === +data + "" ) {
            return +data;
        }

        if ( rbrace.test( data ) ) {
            return JSON.parse( data );
        }

        return data;
    }

    function dataAttr( elem, key, data ) {
        var name;

        // If nothing was found internally, try to fetch any
        // data from the HTML5 data-* attribute
        if ( data === undefined && elem.nodeType === 1 ) {
            name = "data-" + key.replace( rmultiDash, "-$&" ).toLowerCase();
            data = elem.getAttribute( name );

            if ( typeof data === "string" ) {
                try {
                    data = getData( data );
                } catch ( e ) {}

                // Make sure we set the data so it isn't changed later
                dataUser.set( elem, key, data );
            } else {
                data = undefined;
            }
        }
        return data;
    }

    jQuery.extend( {
        hasData: function( elem ) {
            return dataUser.hasData( elem ) || dataPriv.hasData( elem );
        },

        data: function( elem, name, data ) {
            return dataUser.access( elem, name, data );
        },

        removeData: function( elem, name ) {
            dataUser.remove( elem, name );
        },

        // TODO: Now that all calls to _data and _removeData have been replaced
        // with direct calls to dataPriv methods, these can be deprecated.
        _data: function( elem, name, data ) {
            return dataPriv.access( elem, name, data );
        },

        _removeData: function( elem, name ) {
            dataPriv.remove( elem, name );
        }
    } );

    jQuery.fn.extend( {
        data: function( key, value ) {
            var i, name, data,
                elem = this[ 0 ],
                attrs = elem && elem.attributes;

            // Gets all values
            if ( key === undefined ) {
                if ( this.length ) {
                    data = dataUser.get( elem );

                    if ( elem.nodeType === 1 && !dataPriv.get( elem, "hasDataAttrs" ) ) {
                        i = attrs.length;
                        while ( i-- ) {

                            // Support: IE 11 only
                            // The attrs elements can be null (#14894)
                            if ( attrs[ i ] ) {
                                name = attrs[ i ].name;
                                if ( name.indexOf( "data-" ) === 0 ) {
                                    name = camelCase( name.slice( 5 ) );
                                    dataAttr( elem, name, data[ name ] );
                                }
                            }
                        }
                        dataPriv.set( elem, "hasDataAttrs", true );
                    }
                }

                return data;
            }

            // Sets multiple values
            if ( typeof key === "object" ) {
                return this.each( function() {
                    dataUser.set( this, key );
                } );
            }

            return access( this, function( value ) {
                var data;

                // The calling jQuery object (element matches) is not empty
                // (and therefore has an element appears at this[ 0 ]) and the
                // `value` parameter was not undefined. An empty jQuery object
                // will result in `undefined` for elem = this[ 0 ] which will
                // throw an exception if an attempt to read a data cache is made.
                if ( elem && value === undefined ) {

                    // Attempt to get data from the cache
                    // The key will always be camelCased in Data
                    data = dataUser.get( elem, key );
                    if ( data !== undefined ) {
                        return data;
                    }

                    // Attempt to "discover" the data in
                    // HTML5 custom data-* attrs
                    data = dataAttr( elem, key );
                    if ( data !== undefined ) {
                        return data;
                    }

                    // We tried really hard, but the data doesn't exist.
                    return;
                }

                // Set the data...
                this.each( function() {

                    // We always store the camelCased key
                    dataUser.set( this, key, value );
                } );
            }, null, value, arguments.length > 1, null, true );
        },

        removeData: function( key ) {
            return this.each( function() {
                dataUser.remove( this, key );
            } );
        }
    } );


    jQuery.extend( {
        queue: function( elem, type, data ) {
            var queue;

            if ( elem ) {
                type = ( type || "fx" ) + "queue";
                queue = dataPriv.get( elem, type );

                // Speed up dequeue by getting out quickly if this is just a lookup
                if ( data ) {
                    if ( !queue || Array.isArray( data ) ) {
                        queue = dataPriv.access( elem, type, jQuery.makeArray( data ) );
                    } else {
                        queue.push( data );
                    }
                }
                return queue || [];
            }
        },

        dequeue: function( elem, type ) {
            type = type || "fx";

            var queue = jQuery.queue( elem, type ),
                startLength = queue.length,
                fn = queue.shift(),
                hooks = jQuery._queueHooks( elem, type ),
                next = function() {
                    jQuery.dequeue( elem, type );
                };

            // If the fx queue is dequeued, always remove the progress sentinel
            if ( fn === "inprogress" ) {
                fn = queue.shift();
                startLength--;
            }

            if ( fn ) {

                // Add a progress sentinel to prevent the fx queue from being
                // automatically dequeued
                if ( type === "fx" ) {
                    queue.unshift( "inprogress" );
                }

                // Clear up the last queue stop function
                delete hooks.stop;
                fn.call( elem, next, hooks );
            }

            if ( !startLength && hooks ) {
                hooks.empty.fire();
            }
        },

        // Not public - generate a queueHooks object, or return the current one
        _queueHooks: function( elem, type ) {
            var key = type + "queueHooks";
            return dataPriv.get( elem, key ) || dataPriv.access( elem, key, {
                empty: jQuery.Callbacks( "once memory" ).add( function() {
                    dataPriv.remove( elem, [ type + "queue", key ] );
                } )
            } );
        }
    } );

    jQuery.fn.extend( {
        queue: function( type, data ) {
            var setter = 2;

            if ( typeof type !== "string" ) {
                data = type;
                type = "fx";
                setter--;
            }

            if ( arguments.length < setter ) {
                return jQuery.queue( this[ 0 ], type );
            }

            return data === undefined ?
                this :
                this.each( function() {
                    var queue = jQuery.queue( this, type, data );

                    // Ensure a hooks for this queue
                    jQuery._queueHooks( this, type );

                    if ( type === "fx" && queue[ 0 ] !== "inprogress" ) {
                        jQuery.dequeue( this, type );
                    }
                } );
        },
        dequeue: function( type ) {
            return this.each( function() {
                jQuery.dequeue( this, type );
            } );
        },
        clearQueue: function( type ) {
            return this.queue( type || "fx", [] );
        },

        // Get a promise resolved when queues of a certain type
        // are emptied (fx is the type by default)
        promise: function( type, obj ) {
            var tmp,
                count = 1,
                defer = jQuery.Deferred(),
                elements = this,
                i = this.length,
                resolve = function() {
                    if ( !( --count ) ) {
                        defer.resolveWith( elements, [ elements ] );
                    }
                };

            if ( typeof type !== "string" ) {
                obj = type;
                type = undefined;
            }
            type = type || "fx";

            while ( i-- ) {
                tmp = dataPriv.get( elements[ i ], type + "queueHooks" );
                if ( tmp && tmp.empty ) {
                    count++;
                    tmp.empty.add( resolve );
                }
            }
            resolve();
            return defer.promise( obj );
        }
    } );
    var pnum = ( /[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/ ).source;

    var rcssNum = new RegExp( "^(?:([+-])=|)(" + pnum + ")([a-z%]*)$", "i" );


    var cssExpand = [ "Top", "Right", "Bottom", "Left" ];

    var documentElement = document.documentElement;



    var isAttached = function( elem ) {
            return jQuery.contains( elem.ownerDocument, elem );
        },
        composed = { composed: true };

    // Support: IE 9 - 11+, Edge 12 - 18+, iOS 10.0 - 10.2 only
    // Check attachment across shadow DOM boundaries when possible (gh-3504)
    // Support: iOS 10.0-10.2 only
    // Early iOS 10 versions support `attachShadow` but not `getRootNode`,
    // leading to errors. We need to check for `getRootNode`.
    if ( documentElement.getRootNode ) {
        isAttached = function( elem ) {
            return jQuery.contains( elem.ownerDocument, elem ) ||
                elem.getRootNode( composed ) === elem.ownerDocument;
        };
    }
    var isHiddenWithinTree = function( elem, el ) {

        // isHiddenWithinTree might be called from jQuery#filter function;
        // in that case, element will be second argument
        elem = el || elem;

        // Inline style trumps all
        return elem.style.display === "none" ||
            elem.style.display === "" &&

            // Otherwise, check computed style
            // Support: Firefox <=43 - 45
            // Disconnected elements can have computed display: none, so first confirm that elem is
            // in the document.
            isAttached( elem ) &&

            jQuery.css( elem, "display" ) === "none";
    };



    function adjustCSS( elem, prop, valueParts, tween ) {
        var adjusted, scale,
            maxIterations = 20,
            currentValue = tween ?
                function() {
                    return tween.cur();
                } :
                function() {
                    return jQuery.css( elem, prop, "" );
                },
            initial = currentValue(),
            unit = valueParts && valueParts[ 3 ] || ( jQuery.cssNumber[ prop ] ? "" : "px" ),

            // Starting value computation is required for potential unit mismatches
            initialInUnit = elem.nodeType &&
                ( jQuery.cssNumber[ prop ] || unit !== "px" && +initial ) &&
                rcssNum.exec( jQuery.css( elem, prop ) );

        if ( initialInUnit && initialInUnit[ 3 ] !== unit ) {

            // Support: Firefox <=54
            // Halve the iteration target value to prevent interference from CSS upper bounds (gh-2144)
            initial = initial / 2;

            // Trust units reported by jQuery.css
            unit = unit || initialInUnit[ 3 ];

            // Iteratively approximate from a nonzero starting point
            initialInUnit = +initial || 1;

            while ( maxIterations-- ) {

                // Evaluate and update our best guess (doubling guesses that zero out).
                // Finish if the scale equals or crosses 1 (making the old*new product non-positive).
                jQuery.style( elem, prop, initialInUnit + unit );
                if ( ( 1 - scale ) * ( 1 - ( scale = currentValue() / initial || 0.5 ) ) <= 0 ) {
                    maxIterations = 0;
                }
                initialInUnit = initialInUnit / scale;

            }

            initialInUnit = initialInUnit * 2;
            jQuery.style( elem, prop, initialInUnit + unit );

            // Make sure we update the tween properties later on
            valueParts = valueParts || [];
        }

        if ( valueParts ) {
            initialInUnit = +initialInUnit || +initial || 0;

            // Apply relative offset (+=/-=) if specified
            adjusted = valueParts[ 1 ] ?
                initialInUnit + ( valueParts[ 1 ] + 1 ) * valueParts[ 2 ] :
                +valueParts[ 2 ];
            if ( tween ) {
                tween.unit = unit;
                tween.start = initialInUnit;
                tween.end = adjusted;
            }
        }
        return adjusted;
    }


    var defaultDisplayMap = {};

    function getDefaultDisplay( elem ) {
        var temp,
            doc = elem.ownerDocument,
            nodeName = elem.nodeName,
            display = defaultDisplayMap[ nodeName ];

        if ( display ) {
            return display;
        }

        temp = doc.body.appendChild( doc.createElement( nodeName ) );
        display = jQuery.css( temp, "display" );

        temp.parentNode.removeChild( temp );

        if ( display === "none" ) {
            display = "block";
        }
        defaultDisplayMap[ nodeName ] = display;

        return display;
    }

    function showHide( elements, show ) {
        var display, elem,
            values = [],
            index = 0,
            length = elements.length;

        // Determine new display value for elements that need to change
        for ( ; index < length; index++ ) {
            elem = elements[ index ];
            if ( !elem.style ) {
                continue;
            }

            display = elem.style.display;
            if ( show ) {

                // Since we force visibility upon cascade-hidden elements, an immediate (and slow)
                // check is required in this first loop unless we have a nonempty display value (either
                // inline or about-to-be-restored)
                if ( display === "none" ) {
                    values[ index ] = dataPriv.get( elem, "display" ) || null;
                    if ( !values[ index ] ) {
                        elem.style.display = "";
                    }
                }
                if ( elem.style.display === "" && isHiddenWithinTree( elem ) ) {
                    values[ index ] = getDefaultDisplay( elem );
                }
            } else {
                if ( display !== "none" ) {
                    values[ index ] = "none";

                    // Remember what we're overwriting
                    dataPriv.set( elem, "display", display );
                }
            }
        }

        // Set the display of the elements in a second loop to avoid constant reflow
        for ( index = 0; index < length; index++ ) {
            if ( values[ index ] != null ) {
                elements[ index ].style.display = values[ index ];
            }
        }

        return elements;
    }

    jQuery.fn.extend( {
        show: function() {
            return showHide( this, true );
        },
        hide: function() {
            return showHide( this );
        },
        toggle: function( state ) {
            if ( typeof state === "boolean" ) {
                return state ? this.show() : this.hide();
            }

            return this.each( function() {
                if ( isHiddenWithinTree( this ) ) {
                    jQuery( this ).show();
                } else {
                    jQuery( this ).hide();
                }
            } );
        }
    } );
    var rcheckableType = ( /^(?:checkbox|radio)$/i );

    var rtagName = ( /<([a-z][^\/\0>\x20\t\r\n\f]*)/i );

    var rscriptType = ( /^$|^module$|\/(?:java|ecma)script/i );



    ( function() {
        var fragment = document.createDocumentFragment(),
            div = fragment.appendChild( document.createElement( "div" ) ),
            input = document.createElement( "input" );

        // Support: Android 4.0 - 4.3 only
        // Check state lost if the name is set (#11217)
        // Support: Windows Web Apps (WWA)
        // `name` and `type` must use .setAttribute for WWA (#14901)
        input.setAttribute( "type", "radio" );
        input.setAttribute( "checked", "checked" );
        input.setAttribute( "name", "t" );

        div.appendChild( input );

        // Support: Android <=4.1 only
        // Older WebKit doesn't clone checked state correctly in fragments
        support.checkClone = div.cloneNode( true ).cloneNode( true ).lastChild.checked;

        // Support: IE <=11 only
        // Make sure textarea (and checkbox) defaultValue is properly cloned
        div.innerHTML = "<textarea>x</textarea>";
        support.noCloneChecked = !!div.cloneNode( true ).lastChild.defaultValue;

        // Support: IE <=9 only
        // IE <=9 replaces <option> tags with their contents when inserted outside of
        // the select element.
        div.innerHTML = "<option></option>";
        support.option = !!div.lastChild;
    } )();


// We have to close these tags to support XHTML (#13200)
    var wrapMap = {

        // XHTML parsers do not magically insert elements in the
        // same way that tag soup parsers do. So we cannot shorten
        // this by omitting <tbody> or other required elements.
        thead: [ 1, "<table>", "</table>" ],
        col: [ 2, "<table><colgroup>", "</colgroup></table>" ],
        tr: [ 2, "<table><tbody>", "</tbody></table>" ],
        td: [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ],

        _default: [ 0, "", "" ]
    };

    wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;
    wrapMap.th = wrapMap.td;

// Support: IE <=9 only
    if ( !support.option ) {
        wrapMap.optgroup = wrapMap.option = [ 1, "<select multiple='multiple'>", "</select>" ];
    }


    function getAll( context, tag ) {

        // Support: IE <=9 - 11 only
        // Use typeof to avoid zero-argument method invocation on host objects (#15151)
        var ret;

        if ( typeof context.getElementsByTagName !== "undefined" ) {
            ret = context.getElementsByTagName( tag || "*" );

        } else if ( typeof context.querySelectorAll !== "undefined" ) {
            ret = context.querySelectorAll( tag || "*" );

        } else {
            ret = [];
        }

        if ( tag === undefined || tag && nodeName( context, tag ) ) {
            return jQuery.merge( [ context ], ret );
        }

        return ret;
    }


// Mark scripts as having already been evaluated
    function setGlobalEval( elems, refElements ) {
        var i = 0,
            l = elems.length;

        for ( ; i < l; i++ ) {
            dataPriv.set(
                elems[ i ],
                "globalEval",
                !refElements || dataPriv.get( refElements[ i ], "globalEval" )
            );
        }
    }


    var rhtml = /<|&#?\w+;/;

    function buildFragment( elems, context, scripts, selection, ignored ) {
        var elem, tmp, tag, wrap, attached, j,
            fragment = context.createDocumentFragment(),
            nodes = [],
            i = 0,
            l = elems.length;

        for ( ; i < l; i++ ) {
            elem = elems[ i ];

            if ( elem || elem === 0 ) {

                // Add nodes directly
                if ( toType( elem ) === "object" ) {

                    // Support: Android <=4.0 only, PhantomJS 1 only
                    // push.apply(_, arraylike) throws on ancient WebKit
                    jQuery.merge( nodes, elem.nodeType ? [ elem ] : elem );

                    // Convert non-html into a text node
                } else if ( !rhtml.test( elem ) ) {
                    nodes.push( context.createTextNode( elem ) );

                    // Convert html into DOM nodes
                } else {
                    tmp = tmp || fragment.appendChild( context.createElement( "div" ) );

                    // Deserialize a standard representation
                    tag = ( rtagName.exec( elem ) || [ "", "" ] )[ 1 ].toLowerCase();
                    wrap = wrapMap[ tag ] || wrapMap._default;
                    tmp.innerHTML = wrap[ 1 ] + jQuery.htmlPrefilter( elem ) + wrap[ 2 ];

                    // Descend through wrappers to the right content
                    j = wrap[ 0 ];
                    while ( j-- ) {
                        tmp = tmp.lastChild;
                    }

                    // Support: Android <=4.0 only, PhantomJS 1 only
                    // push.apply(_, arraylike) throws on ancient WebKit
                    jQuery.merge( nodes, tmp.childNodes );

                    // Remember the top-level container
                    tmp = fragment.firstChild;

                    // Ensure the created nodes are orphaned (#12392)
                    tmp.textContent = "";
                }
            }
        }

        // Remove wrapper from fragment
        fragment.textContent = "";

        i = 0;
        while ( ( elem = nodes[ i++ ] ) ) {

            // Skip elements already in the context collection (trac-4087)
            if ( selection && jQuery.inArray( elem, selection ) > -1 ) {
                if ( ignored ) {
                    ignored.push( elem );
                }
                continue;
            }

            attached = isAttached( elem );

            // Append to fragment
            tmp = getAll( fragment.appendChild( elem ), "script" );

            // Preserve script evaluation history
            if ( attached ) {
                setGlobalEval( tmp );
            }

            // Capture executables
            if ( scripts ) {
                j = 0;
                while ( ( elem = tmp[ j++ ] ) ) {
                    if ( rscriptType.test( elem.type || "" ) ) {
                        scripts.push( elem );
                    }
                }
            }
        }

        return fragment;
    }


    var rtypenamespace = /^([^.]*)(?:\.(.+)|)/;

    function returnTrue() {
        return true;
    }

    function returnFalse() {
        return false;
    }

// Support: IE <=9 - 11+
// focus() and blur() are asynchronous, except when they are no-op.
// So expect focus to be synchronous when the element is already active,
// and blur to be synchronous when the element is not already active.
// (focus and blur are always synchronous in other supported browsers,
// this just defines when we can count on it).
    function expectSync( elem, type ) {
        return ( elem === safeActiveElement() ) === ( type === "focus" );
    }

// Support: IE <=9 only
// Accessing document.activeElement can throw unexpectedly
// https://bugs.jquery.com/ticket/13393
    function safeActiveElement() {
        try {
            return document.activeElement;
        } catch ( err ) { }
    }

    function on( elem, types, selector, data, fn, one ) {
        var origFn, type;

        // Types can be a map of types/handlers
        if ( typeof types === "object" ) {

            // ( types-Object, selector, data )
            if ( typeof selector !== "string" ) {

                // ( types-Object, data )
                data = data || selector;
                selector = undefined;
            }
            for ( type in types ) {
                on( elem, type, selector, data, types[ type ], one );
            }
            return elem;
        }

        if ( data == null && fn == null ) {

            // ( types, fn )
            fn = selector;
            data = selector = undefined;
        } else if ( fn == null ) {
            if ( typeof selector === "string" ) {

                // ( types, selector, fn )
                fn = data;
                data = undefined;
            } else {

                // ( types, data, fn )
                fn = data;
                data = selector;
                selector = undefined;
            }
        }
        if ( fn === false ) {
            fn = returnFalse;
        } else if ( !fn ) {
            return elem;
        }

        if ( one === 1 ) {
            origFn = fn;
            fn = function( event ) {

                // Can use an empty set, since event contains the info
                jQuery().off( event );
                return origFn.apply( this, arguments );
            };

            // Use same guid so caller can remove using origFn
            fn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ );
        }
        return elem.each( function() {
            jQuery.event.add( this, types, fn, data, selector );
        } );
    }

    /*
 * Helper functions for managing events -- not part of the public interface.
 * Props to Dean Edwards' addEvent library for many of the ideas.
 */
    jQuery.event = {

        global: {},

        add: function( elem, types, handler, data, selector ) {

            var handleObjIn, eventHandle, tmp,
                events, t, handleObj,
                special, handlers, type, namespaces, origType,
                elemData = dataPriv.get( elem );

            // Only attach events to objects that accept data
            if ( !acceptData( elem ) ) {
                return;
            }

            // Caller can pass in an object of custom data in lieu of the handler
            if ( handler.handler ) {
                handleObjIn = handler;
                handler = handleObjIn.handler;
                selector = handleObjIn.selector;
            }

            // Ensure that invalid selectors throw exceptions at attach time
            // Evaluate against documentElement in case elem is a non-element node (e.g., document)
            if ( selector ) {
                jQuery.find.matchesSelector( documentElement, selector );
            }

            // Make sure that the handler has a unique ID, used to find/remove it later
            if ( !handler.guid ) {
                handler.guid = jQuery.guid++;
            }

            // Init the element's event structure and main handler, if this is the first
            if ( !( events = elemData.events ) ) {
                events = elemData.events = Object.create( null );
            }
            if ( !( eventHandle = elemData.handle ) ) {
                eventHandle = elemData.handle = function( e ) {

                    // Discard the second event of a jQuery.event.trigger() and
                    // when an event is called after a page has unloaded
                    return typeof jQuery !== "undefined" && jQuery.event.triggered !== e.type ?
                        jQuery.event.dispatch.apply( elem, arguments ) : undefined;
                };
            }

            // Handle multiple events separated by a space
            types = ( types || "" ).match( rnothtmlwhite ) || [ "" ];
            t = types.length;
            while ( t-- ) {
                tmp = rtypenamespace.exec( types[ t ] ) || [];
                type = origType = tmp[ 1 ];
                namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort();

                // There *must* be a type, no attaching namespace-only handlers
                if ( !type ) {
                    continue;
                }

                // If event changes its type, use the special event handlers for the changed type
                special = jQuery.event.special[ type ] || {};

                // If selector defined, determine special event api type, otherwise given type
                type = ( selector ? special.delegateType : special.bindType ) || type;

                // Update special based on newly reset type
                special = jQuery.event.special[ type ] || {};

                // handleObj is passed to all event handlers
                handleObj = jQuery.extend( {
                    type: type,
                    origType: origType,
                    data: data,
                    handler: handler,
                    guid: handler.guid,
                    selector: selector,
                    needsContext: selector && jQuery.expr.match.needsContext.test( selector ),
                    namespace: namespaces.join( "." )
                }, handleObjIn );

                // Init the event handler queue if we're the first
                if ( !( handlers = events[ type ] ) ) {
                    handlers = events[ type ] = [];
                    handlers.delegateCount = 0;

                    // Only use addEventListener if the special events handler returns false
                    if ( !special.setup ||
                        special.setup.call( elem, data, namespaces, eventHandle ) === false ) {

                        if ( elem.addEventListener ) {
                            elem.addEventListener( type, eventHandle );
                        }
                    }
                }

                if ( special.add ) {
                    special.add.call( elem, handleObj );

                    if ( !handleObj.handler.guid ) {
                        handleObj.handler.guid = handler.guid;
                    }
                }

                // Add to the element's handler list, delegates in front
                if ( selector ) {
                    handlers.splice( handlers.delegateCount++, 0, handleObj );
                } else {
                    handlers.push( handleObj );
                }

                // Keep track of which events have ever been used, for event optimization
                jQuery.event.global[ type ] = true;
            }

        },

        // Detach an event or set of events from an element
        remove: function( elem, types, handler, selector, mappedTypes ) {

            var j, origCount, tmp,
                events, t, handleObj,
                special, handlers, type, namespaces, origType,
                elemData = dataPriv.hasData( elem ) && dataPriv.get( elem );

            if ( !elemData || !( events = elemData.events ) ) {
                return;
            }

            // Once for each type.namespace in types; type may be omitted
            types = ( types || "" ).match( rnothtmlwhite ) || [ "" ];
            t = types.length;
            while ( t-- ) {
                tmp = rtypenamespace.exec( types[ t ] ) || [];
                type = origType = tmp[ 1 ];
                namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort();

                // Unbind all events (on this namespace, if provided) for the element
                if ( !type ) {
                    for ( type in events ) {
                        jQuery.event.remove( elem, type + types[ t ], handler, selector, true );
                    }
                    continue;
                }

                special = jQuery.event.special[ type ] || {};
                type = ( selector ? special.delegateType : special.bindType ) || type;
                handlers = events[ type ] || [];
                tmp = tmp[ 2 ] &&
                    new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" );

                // Remove matching events
                origCount = j = handlers.length;
                while ( j-- ) {
                    handleObj = handlers[ j ];

                    if ( ( mappedTypes || origType === handleObj.origType ) &&
                        ( !handler || handler.guid === handleObj.guid ) &&
                        ( !tmp || tmp.test( handleObj.namespace ) ) &&
                        ( !selector || selector === handleObj.selector ||
                            selector === "**" && handleObj.selector ) ) {
                        handlers.splice( j, 1 );

                        if ( handleObj.selector ) {
                            handlers.delegateCount--;
                        }
                        if ( special.remove ) {
                            special.remove.call( elem, handleObj );
                        }
                    }
                }

                // Remove generic event handler if we removed something and no more handlers exist
                // (avoids potential for endless recursion during removal of special event handlers)
                if ( origCount && !handlers.length ) {
                    if ( !special.teardown ||
                        special.teardown.call( elem, namespaces, elemData.handle ) === false ) {

                        jQuery.removeEvent( elem, type, elemData.handle );
                    }

                    delete events[ type ];
                }
            }

            // Remove data and the expando if it's no longer used
            if ( jQuery.isEmptyObject( events ) ) {
                dataPriv.remove( elem, "handle events" );
            }
        },

        dispatch: function( nativeEvent ) {

            var i, j, ret, matched, handleObj, handlerQueue,
                args = new Array( arguments.length ),

                // Make a writable jQuery.Event from the native event object
                event = jQuery.event.fix( nativeEvent ),

                handlers = (
                    dataPriv.get( this, "events" ) || Object.create( null )
                )[ event.type ] || [],
                special = jQuery.event.special[ event.type ] || {};

            // Use the fix-ed jQuery.Event rather than the (read-only) native event
            args[ 0 ] = event;

            for ( i = 1; i < arguments.length; i++ ) {
                args[ i ] = arguments[ i ];
            }

            event.delegateTarget = this;

            // Call the preDispatch hook for the mapped type, and let it bail if desired
            if ( special.preDispatch && special.preDispatch.call( this, event ) === false ) {
                return;
            }

            // Determine handlers
            handlerQueue = jQuery.event.handlers.call( this, event, handlers );

            // Run delegates first; they may want to stop propagation beneath us
            i = 0;
            while ( ( matched = handlerQueue[ i++ ] ) && !event.isPropagationStopped() ) {
                event.currentTarget = matched.elem;

                j = 0;
                while ( ( handleObj = matched.handlers[ j++ ] ) &&
                !event.isImmediatePropagationStopped() ) {

                    // If the event is namespaced, then each handler is only invoked if it is
                    // specially universal or its namespaces are a superset of the event's.
                    if ( !event.rnamespace || handleObj.namespace === false ||
                        event.rnamespace.test( handleObj.namespace ) ) {

                        event.handleObj = handleObj;
                        event.data = handleObj.data;

                        ret = ( ( jQuery.event.special[ handleObj.origType ] || {} ).handle ||
                            handleObj.handler ).apply( matched.elem, args );

                        if ( ret !== undefined ) {
                            if ( ( event.result = ret ) === false ) {
                                event.preventDefault();
                                event.stopPropagation();
                            }
                        }
                    }
                }
            }

            // Call the postDispatch hook for the mapped type
            if ( special.postDispatch ) {
                special.postDispatch.call( this, event );
            }

            return event.result;
        },

        handlers: function( event, handlers ) {
            var i, handleObj, sel, matchedHandlers, matchedSelectors,
                handlerQueue = [],
                delegateCount = handlers.delegateCount,
                cur = event.target;

            // Find delegate handlers
            if ( delegateCount &&

                // Support: IE <=9
                // Black-hole SVG <use> instance trees (trac-13180)
                cur.nodeType &&

                // Support: Firefox <=42
                // Suppress spec-violating clicks indicating a non-primary pointer button (trac-3861)
                // https://www.w3.org/TR/DOM-Level-3-Events/#event-type-click
                // Support: IE 11 only
                // ...but not arrow key "clicks" of radio inputs, which can have `button` -1 (gh-2343)
                !( event.type === "click" && event.button >= 1 ) ) {

                for ( ; cur !== this; cur = cur.parentNode || this ) {

                    // Don't check non-elements (#13208)
                    // Don't process clicks on disabled elements (#6911, #8165, #11382, #11764)
                    if ( cur.nodeType === 1 && !( event.type === "click" && cur.disabled === true ) ) {
                        matchedHandlers = [];
                        matchedSelectors = {};
                        for ( i = 0; i < delegateCount; i++ ) {
                            handleObj = handlers[ i ];

                            // Don't conflict with Object.prototype properties (#13203)
                            sel = handleObj.selector + " ";

                            if ( matchedSelectors[ sel ] === undefined ) {
                                matchedSelectors[ sel ] = handleObj.needsContext ?
                                    jQuery( sel, this ).index( cur ) > -1 :
                                    jQuery.find( sel, this, null, [ cur ] ).length;
                            }
                            if ( matchedSelectors[ sel ] ) {
                                matchedHandlers.push( handleObj );
                            }
                        }
                        if ( matchedHandlers.length ) {
                            handlerQueue.push( { elem: cur, handlers: matchedHandlers } );
                        }
                    }
                }
            }

            // Add the remaining (directly-bound) handlers
            cur = this;
            if ( delegateCount < handlers.length ) {
                handlerQueue.push( { elem: cur, handlers: handlers.slice( delegateCount ) } );
            }

            return handlerQueue;
        },

        addProp: function( name, hook ) {
            Object.defineProperty( jQuery.Event.prototype, name, {
                enumerable: true,
                configurable: true,

                get: isFunction( hook ) ?
                    function() {
                        if ( this.originalEvent ) {
                            return hook( this.originalEvent );
                        }
                    } :
                    function() {
                        if ( this.originalEvent ) {
                            return this.originalEvent[ name ];
                        }
                    },

                set: function( value ) {
                    Object.defineProperty( this, name, {
                        enumerable: true,
                        configurable: true,
                        writable: true,
                        value: value
                    } );
                }
            } );
        },

        fix: function( originalEvent ) {
            return originalEvent[ jQuery.expando ] ?
                originalEvent :
                new jQuery.Event( originalEvent );
        },

        special: {
            load: {

                // Prevent triggered image.load events from bubbling to window.load
                noBubble: true
            },
            click: {

                // Utilize native event to ensure correct state for checkable inputs
                setup: function( data ) {

                    // For mutual compressibility with _default, replace `this` access with a local var.
                    // `|| data` is dead code meant only to preserve the variable through minification.
                    var el = this || data;

                    // Claim the first handler
                    if ( rcheckableType.test( el.type ) &&
                        el.click && nodeName( el, "input" ) ) {

                        // dataPriv.set( el, "click", ... )
                        leverageNative( el, "click", returnTrue );
                    }

                    // Return false to allow normal processing in the caller
                    return false;
                },
                trigger: function( data ) {

                    // For mutual compressibility with _default, replace `this` access with a local var.
                    // `|| data` is dead code meant only to preserve the variable through minification.
                    var el = this || data;

                    // Force setup before triggering a click
                    if ( rcheckableType.test( el.type ) &&
                        el.click && nodeName( el, "input" ) ) {

                        leverageNative( el, "click" );
                    }

                    // Return non-false to allow normal event-path propagation
                    return true;
                },

                // For cross-browser consistency, suppress native .click() on links
                // Also prevent it if we're currently inside a leveraged native-event stack
                _default: function( event ) {
                    var target = event.target;
                    return rcheckableType.test( target.type ) &&
                        target.click && nodeName( target, "input" ) &&
                        dataPriv.get( target, "click" ) ||
                        nodeName( target, "a" );
                }
            },

            beforeunload: {
                postDispatch: function( event ) {

                    // Support: Firefox 20+
                    // Firefox doesn't alert if the returnValue field is not set.
                    if ( event.result !== undefined && event.originalEvent ) {
                        event.originalEvent.returnValue = event.result;
                    }
                }
            }
        }
    };

// Ensure the presence of an event listener that handles manually-triggered
// synthetic events by interrupting progress until reinvoked in response to
// *native* events that it fires directly, ensuring that state changes have
// already occurred before other listeners are invoked.
    function leverageNative( el, type, expectSync ) {

        // Missing expectSync indicates a trigger call, which must force setup through jQuery.event.add
        if ( !expectSync ) {
            if ( dataPriv.get( el, type ) === undefined ) {
                jQuery.event.add( el, type, returnTrue );
            }
            return;
        }

        // Register the controller as a special universal handler for all event namespaces
        dataPriv.set( el, type, false );
        jQuery.event.add( el, type, {
            namespace: false,
            handler: function( event ) {
                var notAsync, result,
                    saved = dataPriv.get( this, type );

                if ( ( event.isTrigger & 1 ) && this[ type ] ) {

                    // Interrupt processing of the outer synthetic .trigger()ed event
                    // Saved data should be false in such cases, but might be a leftover capture object
                    // from an async native handler (gh-4350)
                    if ( !saved.length ) {

                        // Store arguments for use when handling the inner native event
                        // There will always be at least one argument (an event object), so this array
                        // will not be confused with a leftover capture object.
                        saved = slice.call( arguments );
                        dataPriv.set( this, type, saved );

                        // Trigger the native event and capture its result
                        // Support: IE <=9 - 11+
                        // focus() and blur() are asynchronous
                        notAsync = expectSync( this, type );
                        this[ type ]();
                        result = dataPriv.get( this, type );
                        if ( saved !== result || notAsync ) {
                            dataPriv.set( this, type, false );
                        } else {
                            result = {};
                        }
                        if ( saved !== result ) {

                            // Cancel the outer synthetic event
                            event.stopImmediatePropagation();
                            event.preventDefault();

                            // Support: Chrome 86+
                            // In Chrome, if an element having a focusout handler is blurred by
                            // clicking outside of it, it invokes the handler synchronously. If
                            // that handler calls `.remove()` on the element, the data is cleared,
                            // leaving `result` undefined. We need to guard against this.
                            return result && result.value;
                        }

                        // If this is an inner synthetic event for an event with a bubbling surrogate
                        // (focus or blur), assume that the surrogate already propagated from triggering the
                        // native event and prevent that from happening again here.
                        // This technically gets the ordering wrong w.r.t. to `.trigger()` (in which the
                        // bubbling surrogate propagates *after* the non-bubbling base), but that seems
                        // less bad than duplication.
                    } else if ( ( jQuery.event.special[ type ] || {} ).delegateType ) {
                        event.stopPropagation();
                    }

                    // If this is a native event triggered above, everything is now in order
                    // Fire an inner synthetic event with the original arguments
                } else if ( saved.length ) {

                    // ...and capture the result
                    dataPriv.set( this, type, {
                        value: jQuery.event.trigger(

                            // Support: IE <=9 - 11+
                            // Extend with the prototype to reset the above stopImmediatePropagation()
                            jQuery.extend( saved[ 0 ], jQuery.Event.prototype ),
                            saved.slice( 1 ),
                            this
                        )
                    } );

                    // Abort handling of the native event
                    event.stopImmediatePropagation();
                }
            }
        } );
    }

    jQuery.removeEvent = function( elem, type, handle ) {

        // This "if" is needed for plain objects
        if ( elem.removeEventListener ) {
            elem.removeEventListener( type, handle );
        }
    };

    jQuery.Event = function( src, props ) {

        // Allow instantiation without the 'new' keyword
        if ( !( this instanceof jQuery.Event ) ) {
            return new jQuery.Event( src, props );
        }

        // Event object
        if ( src && src.type ) {
            this.originalEvent = src;
            this.type = src.type;

            // Events bubbling up the document may have been marked as prevented
            // by a handler lower down the tree; reflect the correct value.
            this.isDefaultPrevented = src.defaultPrevented ||
            src.defaultPrevented === undefined &&

            // Support: Android <=2.3 only
            src.returnValue === false ?
                returnTrue :
                returnFalse;

            // Create target properties
            // Support: Safari <=6 - 7 only
            // Target should not be a text node (#504, #13143)
            this.target = ( src.target && src.target.nodeType === 3 ) ?
                src.target.parentNode :
                src.target;

            this.currentTarget = src.currentTarget;
            this.relatedTarget = src.relatedTarget;

            // Event type
        } else {
            this.type = src;
        }

        // Put explicitly provided properties onto the event object
        if ( props ) {
            jQuery.extend( this, props );
        }

        // Create a timestamp if incoming event doesn't have one
        this.timeStamp = src && src.timeStamp || Date.now();

        // Mark it as fixed
        this[ jQuery.expando ] = true;
    };

// jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding
// https://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html
    jQuery.Event.prototype = {
        constructor: jQuery.Event,
        isDefaultPrevented: returnFalse,
        isPropagationStopped: returnFalse,
        isImmediatePropagationStopped: returnFalse,
        isSimulated: false,

        preventDefault: function() {
            var e = this.originalEvent;

            this.isDefaultPrevented = returnTrue;

            if ( e && !this.isSimulated ) {
                e.preventDefault();
            }
        },
        stopPropagation: function() {
            var e = this.originalEvent;

            this.isPropagationStopped = returnTrue;

            if ( e && !this.isSimulated ) {
                e.stopPropagation();
            }
        },
        stopImmediatePropagation: function() {
            var e = this.originalEvent;

            this.isImmediatePropagationStopped = returnTrue;

            if ( e && !this.isSimulated ) {
                e.stopImmediatePropagation();
            }

            this.stopPropagation();
        }
    };

// Includes all common event props including KeyEvent and MouseEvent specific props
    jQuery.each( {
        altKey: true,
        bubbles: true,
        cancelable: true,
        changedTouches: true,
        ctrlKey: true,
        detail: true,
        eventPhase: true,
        metaKey: true,
        pageX: true,
        pageY: true,
        shiftKey: true,
        view: true,
        "char": true,
        code: true,
        charCode: true,
        key: true,
        keyCode: true,
        button: true,
        buttons: true,
        clientX: true,
        clientY: true,
        offsetX: true,
        offsetY: true,
        pointerId: true,
        pointerType: true,
        screenX: true,
        screenY: true,
        targetTouches: true,
        toElement: true,
        touches: true,
        which: true
    }, jQuery.event.addProp );

    jQuery.each( { focus: "focusin", blur: "focusout" }, function( type, delegateType ) {
        jQuery.event.special[ type ] = {

            // Utilize native event if possible so blur/focus sequence is correct
            setup: function() {

                // Claim the first handler
                // dataPriv.set( this, "focus", ... )
                // dataPriv.set( this, "blur", ... )
                leverageNative( this, type, expectSync );

                // Return false to allow normal processing in the caller
                return false;
            },
            trigger: function() {

                // Force setup before trigger
                leverageNative( this, type );

                // Return non-false to allow normal event-path propagation
                return true;
            },

            // Suppress native focus or blur as it's already being fired
            // in leverageNative.
            _default: function() {
                return true;
            },

            delegateType: delegateType
        };
    } );

// Create mouseenter/leave events using mouseover/out and event-time checks
// so that event delegation works in jQuery.
// Do the same for pointerenter/pointerleave and pointerover/pointerout
//
// Support: Safari 7 only
// Safari sends mouseenter too often; see:
// https://bugs.chromium.org/p/chromium/issues/detail?id=470258
// for the description of the bug (it existed in older Chrome versions as well).
    jQuery.each( {
        mouseenter: "mouseover",
        mouseleave: "mouseout",
        pointerenter: "pointerover",
        pointerleave: "pointerout"
    }, function( orig, fix ) {
        jQuery.event.special[ orig ] = {
            delegateType: fix,
            bindType: fix,

            handle: function( event ) {
                var ret,
                    target = this,
                    related = event.relatedTarget,
                    handleObj = event.handleObj;

                // For mouseenter/leave call the handler if related is outside the target.
                // NB: No relatedTarget if the mouse left/entered the browser window
                if ( !related || ( related !== target && !jQuery.contains( target, related ) ) ) {
                    event.type = handleObj.origType;
                    ret = handleObj.handler.apply( this, arguments );
                    event.type = fix;
                }
                return ret;
            }
        };
    } );

    jQuery.fn.extend( {

        on: function( types, selector, data, fn ) {
            return on( this, types, selector, data, fn );
        },
        one: function( types, selector, data, fn ) {
            return on( this, types, selector, data, fn, 1 );
        },
        off: function( types, selector, fn ) {
            var handleObj, type;
            if ( types && types.preventDefault && types.handleObj ) {

                // ( event )  dispatched jQuery.Event
                handleObj = types.handleObj;
                jQuery( types.delegateTarget ).off(
                    handleObj.namespace ?
                        handleObj.origType + "." + handleObj.namespace :
                        handleObj.origType,
                    handleObj.selector,
                    handleObj.handler
                );
                return this;
            }
            if ( typeof types === "object" ) {

                // ( types-object [, selector] )
                for ( type in types ) {
                    this.off( type, selector, types[ type ] );
                }
                return this;
            }
            if ( selector === false || typeof selector === "function" ) {

                // ( types [, fn] )
                fn = selector;
                selector = undefined;
            }
            if ( fn === false ) {
                fn = returnFalse;
            }
            return this.each( function() {
                jQuery.event.remove( this, types, fn, selector );
            } );
        }
    } );


    var

        // Support: IE <=10 - 11, Edge 12 - 13 only
        // In IE/Edge using regex groups here causes severe slowdowns.
        // See https://connect.microsoft.com/IE/feedback/details/1736512/
        rnoInnerhtml = /<script|<style|<link/i,

        // checked="checked" or checked
        rchecked = /checked\s*(?:[^=]|=\s*.checked.)/i,
        rcleanScript = /^\s*<!(?:\[CDATA\[|--)|(?:\]\]|--)>\s*$/g;

// Prefer a tbody over its parent table for containing new rows
    function manipulationTarget( elem, content ) {
        if ( nodeName( elem, "table" ) &&
            nodeName( content.nodeType !== 11 ? content : content.firstChild, "tr" ) ) {

            return jQuery( elem ).children( "tbody" )[ 0 ] || elem;
        }

        return elem;
    }

// Replace/restore the type attribute of script elements for safe DOM manipulation
    function disableScript( elem ) {
        elem.type = ( elem.getAttribute( "type" ) !== null ) + "/" + elem.type;
        return elem;
    }
    function restoreScript( elem ) {
        if ( ( elem.type || "" ).slice( 0, 5 ) === "true/" ) {
            elem.type = elem.type.slice( 5 );
        } else {
            elem.removeAttribute( "type" );
        }

        return elem;
    }

    function cloneCopyEvent( src, dest ) {
        var i, l, type, pdataOld, udataOld, udataCur, events;

        if ( dest.nodeType !== 1 ) {
            return;
        }

        // 1. Copy private data: events, handlers, etc.
        if ( dataPriv.hasData( src ) ) {
            pdataOld = dataPriv.get( src );
            events = pdataOld.events;

            if ( events ) {
                dataPriv.remove( dest, "handle events" );

                for ( type in events ) {
                    for ( i = 0, l = events[ type ].length; i < l; i++ ) {
                        jQuery.event.add( dest, type, events[ type ][ i ] );
                    }
                }
            }
        }

        // 2. Copy user data
        if ( dataUser.hasData( src ) ) {
            udataOld = dataUser.access( src );
            udataCur = jQuery.extend( {}, udataOld );

            dataUser.set( dest, udataCur );
        }
    }

// Fix IE bugs, see support tests
    function fixInput( src, dest ) {
        var nodeName = dest.nodeName.toLowerCase();

        // Fails to persist the checked state of a cloned checkbox or radio button.
        if ( nodeName === "input" && rcheckableType.test( src.type ) ) {
            dest.checked = src.checked;

            // Fails to return the selected option to the default selected state when cloning options
        } else if ( nodeName === "input" || nodeName === "textarea" ) {
            dest.defaultValue = src.defaultValue;
        }
    }

    function domManip( collection, args, callback, ignored ) {

        // Flatten any nested arrays
        args = flat( args );

        var fragment, first, scripts, hasScripts, node, doc,
            i = 0,
            l = collection.length,
            iNoClone = l - 1,
            value = args[ 0 ],
            valueIsFunction = isFunction( value );

        // We can't cloneNode fragments that contain checked, in WebKit
        if ( valueIsFunction ||
            ( l > 1 && typeof value === "string" &&
                !support.checkClone && rchecked.test( value ) ) ) {
            return collection.each( function( index ) {
                var self = collection.eq( index );
                if ( valueIsFunction ) {
                    args[ 0 ] = value.call( this, index, self.html() );
                }
                domManip( self, args, callback, ignored );
            } );
        }

        if ( l ) {
            fragment = buildFragment( args, collection[ 0 ].ownerDocument, false, collection, ignored );
            first = fragment.firstChild;

            if ( fragment.childNodes.length === 1 ) {
                fragment = first;
            }

            // Require either new content or an interest in ignored elements to invoke the callback
            if ( first || ignored ) {
                scripts = jQuery.map( getAll( fragment, "script" ), disableScript );
                hasScripts = scripts.length;

                // Use the original fragment for the last item
                // instead of the first because it can end up
                // being emptied incorrectly in certain situations (#8070).
                for ( ; i < l; i++ ) {
                    node = fragment;

                    if ( i !== iNoClone ) {
                        node = jQuery.clone( node, true, true );

                        // Keep references to cloned scripts for later restoration
                        if ( hasScripts ) {

                            // Support: Android <=4.0 only, PhantomJS 1 only
                            // push.apply(_, arraylike) throws on ancient WebKit
                            jQuery.merge( scripts, getAll( node, "script" ) );
                        }
                    }

                    callback.call( collection[ i ], node, i );
                }

                if ( hasScripts ) {
                    doc = scripts[ scripts.length - 1 ].ownerDocument;

                    // Reenable scripts
                    jQuery.map( scripts, restoreScript );

                    // Evaluate executable scripts on first document insertion
                    for ( i = 0; i < hasScripts; i++ ) {
                        node = scripts[ i ];
                        if ( rscriptType.test( node.type || "" ) &&
                            !dataPriv.access( node, "globalEval" ) &&
                            jQuery.contains( doc, node ) ) {

                            if ( node.src && ( node.type || "" ).toLowerCase()  !== "module" ) {

                                // Optional AJAX dependency, but won't run scripts if not present
                                if ( jQuery._evalUrl && !node.noModule ) {
                                    jQuery._evalUrl( node.src, {
                                        nonce: node.nonce || node.getAttribute( "nonce" )
                                    }, doc );
                                }
                            } else {
                                DOMEval( node.textContent.replace( rcleanScript, "" ), node, doc );
                            }
                        }
                    }
                }
            }
        }

        return collection;
    }

    function remove( elem, selector, keepData ) {
        var node,
            nodes = selector ? jQuery.filter( selector, elem ) : elem,
            i = 0;

        for ( ; ( node = nodes[ i ] ) != null; i++ ) {
            if ( !keepData && node.nodeType === 1 ) {
                jQuery.cleanData( getAll( node ) );
            }

            if ( node.parentNode ) {
                if ( keepData && isAttached( node ) ) {
                    setGlobalEval( getAll( node, "script" ) );
                }
                node.parentNode.removeChild( node );
            }
        }

        return elem;
    }

    jQuery.extend( {
        htmlPrefilter: function( html ) {
            return html;
        },

        clone: function( elem, dataAndEvents, deepDataAndEvents ) {
            var i, l, srcElements, destElements,
                clone = elem.cloneNode( true ),
                inPage = isAttached( elem );

            // Fix IE cloning issues
            if ( !support.noCloneChecked && ( elem.nodeType === 1 || elem.nodeType === 11 ) &&
                !jQuery.isXMLDoc( elem ) ) {

                // We eschew Sizzle here for performance reasons: https://jsperf.com/getall-vs-sizzle/2
                destElements = getAll( clone );
                srcElements = getAll( elem );

                for ( i = 0, l = srcElements.length; i < l; i++ ) {
                    fixInput( srcElements[ i ], destElements[ i ] );
                }
            }

            // Copy the events from the original to the clone
            if ( dataAndEvents ) {
                if ( deepDataAndEvents ) {
                    srcElements = srcElements || getAll( elem );
                    destElements = destElements || getAll( clone );

                    for ( i = 0, l = srcElements.length; i < l; i++ ) {
                        cloneCopyEvent( srcElements[ i ], destElements[ i ] );
                    }
                } else {
                    cloneCopyEvent( elem, clone );
                }
            }

            // Preserve script evaluation history
            destElements = getAll( clone, "script" );
            if ( destElements.length > 0 ) {
                setGlobalEval( destElements, !inPage && getAll( elem, "script" ) );
            }

            // Return the cloned set
            return clone;
        },

        cleanData: function( elems ) {
            var data, elem, type,
                special = jQuery.event.special,
                i = 0;

            for ( ; ( elem = elems[ i ] ) !== undefined; i++ ) {
                if ( acceptData( elem ) ) {
                    if ( ( data = elem[ dataPriv.expando ] ) ) {
                        if ( data.events ) {
                            for ( type in data.events ) {
                                if ( special[ type ] ) {
                                    jQuery.event.remove( elem, type );

                                    // This is a shortcut to avoid jQuery.event.remove's overhead
                                } else {
                                    jQuery.removeEvent( elem, type, data.handle );
                                }
                            }
                        }

                        // Support: Chrome <=35 - 45+
                        // Assign undefined instead of using delete, see Data#remove
                        elem[ dataPriv.expando ] = undefined;
                    }
                    if ( elem[ dataUser.expando ] ) {

                        // Support: Chrome <=35 - 45+
                        // Assign undefined instead of using delete, see Data#remove
                        elem[ dataUser.expando ] = undefined;
                    }
                }
            }
        }
    } );

    jQuery.fn.extend( {
        detach: function( selector ) {
            return remove( this, selector, true );
        },

        remove: function( selector ) {
            return remove( this, selector );
        },

        text: function( value ) {
            return access( this, function( value ) {
                return value === undefined ?
                    jQuery.text( this ) :
                    this.empty().each( function() {
                        if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
                            this.textContent = value;
                        }
                    } );
            }, null, value, arguments.length );
        },

        append: function() {
            return domManip( this, arguments, function( elem ) {
                if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
                    var target = manipulationTarget( this, elem );
                    target.appendChild( elem );
                }
            } );
        },

        prepend: function() {
            return domManip( this, arguments, function( elem ) {
                if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
                    var target = manipulationTarget( this, elem );
                    target.insertBefore( elem, target.firstChild );
                }
            } );
        },

        before: function() {
            return domManip( this, arguments, function( elem ) {
                if ( this.parentNode ) {
                    this.parentNode.insertBefore( elem, this );
                }
            } );
        },

        after: function() {
            return domManip( this, arguments, function( elem ) {
                if ( this.parentNode ) {
                    this.parentNode.insertBefore( elem, this.nextSibling );
                }
            } );
        },

        empty: function() {
            var elem,
                i = 0;

            for ( ; ( elem = this[ i ] ) != null; i++ ) {
                if ( elem.nodeType === 1 ) {

                    // Prevent memory leaks
                    jQuery.cleanData( getAll( elem, false ) );

                    // Remove any remaining nodes
                    elem.textContent = "";
                }
            }

            return this;
        },

        clone: function( dataAndEvents, deepDataAndEvents ) {
            dataAndEvents = dataAndEvents == null ? false : dataAndEvents;
            deepDataAndEvents = deepDataAndEvents == null ? dataAndEvents : deepDataAndEvents;

            return this.map( function() {
                return jQuery.clone( this, dataAndEvents, deepDataAndEvents );
            } );
        },

        html: function( value ) {
            return access( this, function( value ) {
                var elem = this[ 0 ] || {},
                    i = 0,
                    l = this.length;

                if ( value === undefined && elem.nodeType === 1 ) {
                    return elem.innerHTML;
                }

                // See if we can take a shortcut and just use innerHTML
                if ( typeof value === "string" && !rnoInnerhtml.test( value ) &&
                    !wrapMap[ ( rtagName.exec( value ) || [ "", "" ] )[ 1 ].toLowerCase() ] ) {

                    value = jQuery.htmlPrefilter( value );

                    try {
                        for ( ; i < l; i++ ) {
                            elem = this[ i ] || {};

                            // Remove element nodes and prevent memory leaks
                            if ( elem.nodeType === 1 ) {
                                jQuery.cleanData( getAll( elem, false ) );
                                elem.innerHTML = value;
                            }
                        }

                        elem = 0;

                        // If using innerHTML throws an exception, use the fallback method
                    } catch ( e ) {}
                }

                if ( elem ) {
                    this.empty().append( value );
                }
            }, null, value, arguments.length );
        },

        replaceWith: function() {
            var ignored = [];

            // Make the changes, replacing each non-ignored context element with the new content
            return domManip( this, arguments, function( elem ) {
                var parent = this.parentNode;

                if ( jQuery.inArray( this, ignored ) < 0 ) {
                    jQuery.cleanData( getAll( this ) );
                    if ( parent ) {
                        parent.replaceChild( elem, this );
                    }
                }

                // Force callback invocation
            }, ignored );
        }
    } );

    jQuery.each( {
        appendTo: "append",
        prependTo: "prepend",
        insertBefore: "before",
        insertAfter: "after",
        replaceAll: "replaceWith"
    }, function( name, original ) {
        jQuery.fn[ name ] = function( selector ) {
            var elems,
                ret = [],
                insert = jQuery( selector ),
                last = insert.length - 1,
                i = 0;

            for ( ; i <= last; i++ ) {
                elems = i === last ? this : this.clone( true );
                jQuery( insert[ i ] )[ original ]( elems );

                // Support: Android <=4.0 only, PhantomJS 1 only
                // .get() because push.apply(_, arraylike) throws on ancient WebKit
                push.apply( ret, elems.get() );
            }

            return this.pushStack( ret );
        };
    } );
    var rnumnonpx = new RegExp( "^(" + pnum + ")(?!px)[a-z%]+$", "i" );

    var getStyles = function( elem ) {

        // Support: IE <=11 only, Firefox <=30 (#15098, #14150)
        // IE throws on elements created in popups
        // FF meanwhile throws on frame elements through "defaultView.getComputedStyle"
        var view = elem.ownerDocument.defaultView;

        if ( !view || !view.opener ) {
            view = window;
        }

        return view.getComputedStyle( elem );
    };

    var swap = function( elem, options, callback ) {
        var ret, name,
            old = {};

        // Remember the old values, and insert the new ones
        for ( name in options ) {
            old[ name ] = elem.style[ name ];
            elem.style[ name ] = options[ name ];
        }

        ret = callback.call( elem );

        // Revert the old values
        for ( name in options ) {
            elem.style[ name ] = old[ name ];
        }

        return ret;
    };


    var rboxStyle = new RegExp( cssExpand.join( "|" ), "i" );



    ( function() {

        // Executing both pixelPosition & boxSizingReliable tests require only one layout
        // so they're executed at the same time to save the second computation.
        function computeStyleTests() {

            // This is a singleton, we need to execute it only once
            if ( !div ) {
                return;
            }

            container.style.cssText = "position:absolute;left:-11111px;width:60px;" +
                "margin-top:1px;padding:0;border:0";
            div.style.cssText =
                "position:relative;display:block;box-sizing:border-box;overflow:scroll;" +
                "margin:auto;border:1px;padding:1px;" +
                "width:60%;top:1%";
            documentElement.appendChild( container ).appendChild( div );

            var divStyle = window.getComputedStyle( div );
            pixelPositionVal = divStyle.top !== "1%";

            // Support: Android 4.0 - 4.3 only, Firefox <=3 - 44
            reliableMarginLeftVal = roundPixelMeasures( divStyle.marginLeft ) === 12;

            // Support: Android 4.0 - 4.3 only, Safari <=9.1 - 10.1, iOS <=7.0 - 9.3
            // Some styles come back with percentage values, even though they shouldn't
            div.style.right = "60%";
            pixelBoxStylesVal = roundPixelMeasures( divStyle.right ) === 36;

            // Support: IE 9 - 11 only
            // Detect misreporting of content dimensions for box-sizing:border-box elements
            boxSizingReliableVal = roundPixelMeasures( divStyle.width ) === 36;

            // Support: IE 9 only
            // Detect overflow:scroll screwiness (gh-3699)
            // Support: Chrome <=64
            // Don't get tricked when zoom affects offsetWidth (gh-4029)
            div.style.position = "absolute";
            scrollboxSizeVal = roundPixelMeasures( div.offsetWidth / 3 ) === 12;

            documentElement.removeChild( container );

            // Nullify the div so it wouldn't be stored in the memory and
            // it will also be a sign that checks already performed
            div = null;
        }

        function roundPixelMeasures( measure ) {
            return Math.round( parseFloat( measure ) );
        }

        var pixelPositionVal, boxSizingReliableVal, scrollboxSizeVal, pixelBoxStylesVal,
            reliableTrDimensionsVal, reliableMarginLeftVal,
            container = document.createElement( "div" ),
            div = document.createElement( "div" );

        // Finish early in limited (non-browser) environments
        if ( !div.style ) {
            return;
        }

        // Support: IE <=9 - 11 only
        // Style of cloned element affects source element cloned (#8908)
        div.style.backgroundClip = "content-box";
        div.cloneNode( true ).style.backgroundClip = "";
        support.clearCloneStyle = div.style.backgroundClip === "content-box";

        jQuery.extend( support, {
            boxSizingReliable: function() {
                computeStyleTests();
                return boxSizingReliableVal;
            },
            pixelBoxStyles: function() {
                computeStyleTests();
                return pixelBoxStylesVal;
            },
            pixelPosition: function() {
                computeStyleTests();
                return pixelPositionVal;
            },
            reliableMarginLeft: function() {
                computeStyleTests();
                return reliableMarginLeftVal;
            },
            scrollboxSize: function() {
                computeStyleTests();
                return scrollboxSizeVal;
            },

            // Support: IE 9 - 11+, Edge 15 - 18+
            // IE/Edge misreport `getComputedStyle` of table rows with width/height
            // set in CSS while `offset*` properties report correct values.
            // Behavior in IE 9 is more subtle than in newer versions & it passes
            // some versions of this test; make sure not to make it pass there!
            //
            // Support: Firefox 70+
            // Only Firefox includes border widths
            // in computed dimensions. (gh-4529)
            reliableTrDimensions: function() {
                var table, tr, trChild, trStyle;
                if ( reliableTrDimensionsVal == null ) {
                    table = document.createElement( "table" );
                    tr = document.createElement( "tr" );
                    trChild = document.createElement( "div" );

                    table.style.cssText = "position:absolute;left:-11111px;border-collapse:separate";
                    tr.style.cssText = "border:1px solid";

                    // Support: Chrome 86+
                    // Height set through cssText does not get applied.
                    // Computed height then comes back as 0.
                    tr.style.height = "1px";
                    trChild.style.height = "9px";

                    // Support: Android 8 Chrome 86+
                    // In our bodyBackground.html iframe,
                    // display for all div elements is set to "inline",
                    // which causes a problem only in Android 8 Chrome 86.
                    // Ensuring the div is display: block
                    // gets around this issue.
                    trChild.style.display = "block";

                    documentElement
                        .appendChild( table )
                        .appendChild( tr )
                        .appendChild( trChild );

                    trStyle = window.getComputedStyle( tr );
                    reliableTrDimensionsVal = ( parseInt( trStyle.height, 10 ) +
                        parseInt( trStyle.borderTopWidth, 10 ) +
                        parseInt( trStyle.borderBottomWidth, 10 ) ) === tr.offsetHeight;

                    documentElement.removeChild( table );
                }
                return reliableTrDimensionsVal;
            }
        } );
    } )();


    function curCSS( elem, name, computed ) {
        var width, minWidth, maxWidth, ret,

            // Support: Firefox 51+
            // Retrieving style before computed somehow
            // fixes an issue with getting wrong values
            // on detached elements
            style = elem.style;

        computed = computed || getStyles( elem );

        // getPropertyValue is needed for:
        //   .css('filter') (IE 9 only, #12537)
        //   .css('--customProperty) (#3144)
        if ( computed ) {
            ret = computed.getPropertyValue( name ) || computed[ name ];

            if ( ret === "" && !isAttached( elem ) ) {
                ret = jQuery.style( elem, name );
            }

            // A tribute to the "awesome hack by Dean Edwards"
            // Android Browser returns percentage for some values,
            // but width seems to be reliably pixels.
            // This is against the CSSOM draft spec:
            // https://drafts.csswg.org/cssom/#resolved-values
            if ( !support.pixelBoxStyles() && rnumnonpx.test( ret ) && rboxStyle.test( name ) ) {

                // Remember the original values
                width = style.width;
                minWidth = style.minWidth;
                maxWidth = style.maxWidth;

                // Put in the new values to get a computed value out
                style.minWidth = style.maxWidth = style.width = ret;
                ret = computed.width;

                // Revert the changed values
                style.width = width;
                style.minWidth = minWidth;
                style.maxWidth = maxWidth;
            }
        }

        return ret !== undefined ?

            // Support: IE <=9 - 11 only
            // IE returns zIndex value as an integer.
            ret + "" :
            ret;
    }


    function addGetHookIf( conditionFn, hookFn ) {

        // Define the hook, we'll check on the first run if it's really needed.
        return {
            get: function() {
                if ( conditionFn() ) {

                    // Hook not needed (or it's not possible to use it due
                    // to missing dependency), remove it.
                    delete this.get;
                    return;
                }

                // Hook needed; redefine it so that the support test is not executed again.
                return ( this.get = hookFn ).apply( this, arguments );
            }
        };
    }


    var cssPrefixes = [ "Webkit", "Moz", "ms" ],
        emptyStyle = document.createElement( "div" ).style,
        vendorProps = {};

// Return a vendor-prefixed property or undefined
    function vendorPropName( name ) {

        // Check for vendor prefixed names
        var capName = name[ 0 ].toUpperCase() + name.slice( 1 ),
            i = cssPrefixes.length;

        while ( i-- ) {
            name = cssPrefixes[ i ] + capName;
            if ( name in emptyStyle ) {
                return name;
            }
        }
    }

// Return a potentially-mapped jQuery.cssProps or vendor prefixed property
    function finalPropName( name ) {
        var final = jQuery.cssProps[ name ] || vendorProps[ name ];

        if ( final ) {
            return final;
        }
        if ( name in emptyStyle ) {
            return name;
        }
        return vendorProps[ name ] = vendorPropName( name ) || name;
    }


    var

        // Swappable if display is none or starts with table
        // except "table", "table-cell", or "table-caption"
        // See here for display values: https://developer.mozilla.org/en-US/docs/CSS/display
        rdisplayswap = /^(none|table(?!-c[ea]).+)/,
        rcustomProp = /^--/,
        cssShow = { position: "absolute", visibility: "hidden", display: "block" },
        cssNormalTransform = {
            letterSpacing: "0",
            fontWeight: "400"
        };

    function setPositiveNumber( _elem, value, subtract ) {

        // Any relative (+/-) values have already been
        // normalized at this point
        var matches = rcssNum.exec( value );
        return matches ?

            // Guard against undefined "subtract", e.g., when used as in cssHooks
            Math.max( 0, matches[ 2 ] - ( subtract || 0 ) ) + ( matches[ 3 ] || "px" ) :
            value;
    }

    function boxModelAdjustment( elem, dimension, box, isBorderBox, styles, computedVal ) {
        var i = dimension === "width" ? 1 : 0,
            extra = 0,
            delta = 0;

        // Adjustment may not be necessary
        if ( box === ( isBorderBox ? "border" : "content" ) ) {
            return 0;
        }

        for ( ; i < 4; i += 2 ) {

            // Both box models exclude margin
            if ( box === "margin" ) {
                delta += jQuery.css( elem, box + cssExpand[ i ], true, styles );
            }

            // If we get here with a content-box, we're seeking "padding" or "border" or "margin"
            if ( !isBorderBox ) {

                // Add padding
                delta += jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );

                // For "border" or "margin", add border
                if ( box !== "padding" ) {
                    delta += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );

                    // But still keep track of it otherwise
                } else {
                    extra += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
                }

                // If we get here with a border-box (content + padding + border), we're seeking "content" or
                // "padding" or "margin"
            } else {

                // For "content", subtract padding
                if ( box === "content" ) {
                    delta -= jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
                }

                // For "content" or "padding", subtract border
                if ( box !== "margin" ) {
                    delta -= jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
                }
            }
        }

        // Account for positive content-box scroll gutter when requested by providing computedVal
        if ( !isBorderBox && computedVal >= 0 ) {

            // offsetWidth/offsetHeight is a rounded sum of content, padding, scroll gutter, and border
            // Assuming integer scroll gutter, subtract the rest and round down
            delta += Math.max( 0, Math.ceil(
                elem[ "offset" + dimension[ 0 ].toUpperCase() + dimension.slice( 1 ) ] -
                computedVal -
                delta -
                extra -
                0.5

                // If offsetWidth/offsetHeight is unknown, then we can't determine content-box scroll gutter
                // Use an explicit zero to avoid NaN (gh-3964)
            ) ) || 0;
        }

        return delta;
    }

    function getWidthOrHeight( elem, dimension, extra ) {

        // Start with computed style
        var styles = getStyles( elem ),

            // To avoid forcing a reflow, only fetch boxSizing if we need it (gh-4322).
            // Fake content-box until we know it's needed to know the true value.
            boxSizingNeeded = !support.boxSizingReliable() || extra,
            isBorderBox = boxSizingNeeded &&
                jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
            valueIsBorderBox = isBorderBox,

            val = curCSS( elem, dimension, styles ),
            offsetProp = "offset" + dimension[ 0 ].toUpperCase() + dimension.slice( 1 );

        // Support: Firefox <=54
        // Return a confounding non-pixel value or feign ignorance, as appropriate.
        if ( rnumnonpx.test( val ) ) {
            if ( !extra ) {
                return val;
            }
            val = "auto";
        }


        // Support: IE 9 - 11 only
        // Use offsetWidth/offsetHeight for when box sizing is unreliable.
        // In those cases, the computed value can be trusted to be border-box.
        if ( ( !support.boxSizingReliable() && isBorderBox ||

                // Support: IE 10 - 11+, Edge 15 - 18+
                // IE/Edge misreport `getComputedStyle` of table rows with width/height
                // set in CSS while `offset*` properties report correct values.
                // Interestingly, in some cases IE 9 doesn't suffer from this issue.
                !support.reliableTrDimensions() && nodeName( elem, "tr" ) ||

                // Fall back to offsetWidth/offsetHeight when value is "auto"
                // This happens for inline elements with no explicit setting (gh-3571)
                val === "auto" ||

                // Support: Android <=4.1 - 4.3 only
                // Also use offsetWidth/offsetHeight for misreported inline dimensions (gh-3602)
                !parseFloat( val ) && jQuery.css( elem, "display", false, styles ) === "inline" ) &&

            // Make sure the element is visible & connected
            elem.getClientRects().length ) {

            isBorderBox = jQuery.css( elem, "boxSizing", false, styles ) === "border-box";

            // Where available, offsetWidth/offsetHeight approximate border box dimensions.
            // Where not available (e.g., SVG), assume unreliable box-sizing and interpret the
            // retrieved value as a content box dimension.
            valueIsBorderBox = offsetProp in elem;
            if ( valueIsBorderBox ) {
                val = elem[ offsetProp ];
            }
        }

        // Normalize "" and auto
        val = parseFloat( val ) || 0;

        // Adjust for the element's box model
        return ( val +
            boxModelAdjustment(
                elem,
                dimension,
                extra || ( isBorderBox ? "border" : "content" ),
                valueIsBorderBox,
                styles,

                // Provide the current computed size to request scroll gutter calculation (gh-3589)
                val
            )
        ) + "px";
    }

    jQuery.extend( {

        // Add in style property hooks for overriding the default
        // behavior of getting and setting a style property
        cssHooks: {
            opacity: {
                get: function( elem, computed ) {
                    if ( computed ) {

                        // We should always get a number back from opacity
                        var ret = curCSS( elem, "opacity" );
                        return ret === "" ? "1" : ret;
                    }
                }
            }
        },

        // Don't automatically add "px" to these possibly-unitless properties
        cssNumber: {
            "animationIterationCount": true,
            "columnCount": true,
            "fillOpacity": true,
            "flexGrow": true,
            "flexShrink": true,
            "fontWeight": true,
            "gridArea": true,
            "gridColumn": true,
            "gridColumnEnd": true,
            "gridColumnStart": true,
            "gridRow": true,
            "gridRowEnd": true,
            "gridRowStart": true,
            "lineHeight": true,
            "opacity": true,
            "order": true,
            "orphans": true,
            "widows": true,
            "zIndex": true,
            "zoom": true
        },

        // Add in properties whose names you wish to fix before
        // setting or getting the value
        cssProps: {},

        // Get and set the style property on a DOM Node
        style: function( elem, name, value, extra ) {

            // Don't set styles on text and comment nodes
            if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style ) {
                return;
            }

            // Make sure that we're working with the right name
            var ret, type, hooks,
                origName = camelCase( name ),
                isCustomProp = rcustomProp.test( name ),
                style = elem.style;

            // Make sure that we're working with the right name. We don't
            // want to query the value if it is a CSS custom property
            // since they are user-defined.
            if ( !isCustomProp ) {
                name = finalPropName( origName );
            }

            // Gets hook for the prefixed version, then unprefixed version
            hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];

            // Check if we're setting a value
            if ( value !== undefined ) {
                type = typeof value;

                // Convert "+=" or "-=" to relative numbers (#7345)
                if ( type === "string" && ( ret = rcssNum.exec( value ) ) && ret[ 1 ] ) {
                    value = adjustCSS( elem, name, ret );

                    // Fixes bug #9237
                    type = "number";
                }

                // Make sure that null and NaN values aren't set (#7116)
                if ( value == null || value !== value ) {
                    return;
                }

                // If a number was passed in, add the unit (except for certain CSS properties)
                // The isCustomProp check can be removed in jQuery 4.0 when we only auto-append
                // "px" to a few hardcoded values.
                if ( type === "number" && !isCustomProp ) {
                    value += ret && ret[ 3 ] || ( jQuery.cssNumber[ origName ] ? "" : "px" );
                }

                // background-* props affect original clone's values
                if ( !support.clearCloneStyle && value === "" && name.indexOf( "background" ) === 0 ) {
                    style[ name ] = "inherit";
                }

                // If a hook was provided, use that value, otherwise just set the specified value
                if ( !hooks || !( "set" in hooks ) ||
                    ( value = hooks.set( elem, value, extra ) ) !== undefined ) {

                    if ( isCustomProp ) {
                        style.setProperty( name, value );
                    } else {
                        style[ name ] = value;
                    }
                }

            } else {

                // If a hook was provided get the non-computed value from there
                if ( hooks && "get" in hooks &&
                    ( ret = hooks.get( elem, false, extra ) ) !== undefined ) {

                    return ret;
                }

                // Otherwise just get the value from the style object
                return style[ name ];
            }
        },

        css: function( elem, name, extra, styles ) {
            var val, num, hooks,
                origName = camelCase( name ),
                isCustomProp = rcustomProp.test( name );

            // Make sure that we're working with the right name. We don't
            // want to modify the value if it is a CSS custom property
            // since they are user-defined.
            if ( !isCustomProp ) {
                name = finalPropName( origName );
            }

            // Try prefixed name followed by the unprefixed name
            hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];

            // If a hook was provided get the computed value from there
            if ( hooks && "get" in hooks ) {
                val = hooks.get( elem, true, extra );
            }

            // Otherwise, if a way to get the computed value exists, use that
            if ( val === undefined ) {
                val = curCSS( elem, name, styles );
            }

            // Convert "normal" to computed value
            if ( val === "normal" && name in cssNormalTransform ) {
                val = cssNormalTransform[ name ];
            }

            // Make numeric if forced or a qualifier was provided and val looks numeric
            if ( extra === "" || extra ) {
                num = parseFloat( val );
                return extra === true || isFinite( num ) ? num || 0 : val;
            }

            return val;
        }
    } );

    jQuery.each( [ "height", "width" ], function( _i, dimension ) {
        jQuery.cssHooks[ dimension ] = {
            get: function( elem, computed, extra ) {
                if ( computed ) {

                    // Certain elements can have dimension info if we invisibly show them
                    // but it must have a current display style that would benefit
                    return rdisplayswap.test( jQuery.css( elem, "display" ) ) &&

                    // Support: Safari 8+
                    // Table columns in Safari have non-zero offsetWidth & zero
                    // getBoundingClientRect().width unless display is changed.
                    // Support: IE <=11 only
                    // Running getBoundingClientRect on a disconnected node
                    // in IE throws an error.
                    ( !elem.getClientRects().length || !elem.getBoundingClientRect().width ) ?
                        swap( elem, cssShow, function() {
                            return getWidthOrHeight( elem, dimension, extra );
                        } ) :
                        getWidthOrHeight( elem, dimension, extra );
                }
            },

            set: function( elem, value, extra ) {
                var matches,
                    styles = getStyles( elem ),

                    // Only read styles.position if the test has a chance to fail
                    // to avoid forcing a reflow.
                    scrollboxSizeBuggy = !support.scrollboxSize() &&
                        styles.position === "absolute",

                    // To avoid forcing a reflow, only fetch boxSizing if we need it (gh-3991)
                    boxSizingNeeded = scrollboxSizeBuggy || extra,
                    isBorderBox = boxSizingNeeded &&
                        jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
                    subtract = extra ?
                        boxModelAdjustment(
                            elem,
                            dimension,
                            extra,
                            isBorderBox,
                            styles
                        ) :
                        0;

                // Account for unreliable border-box dimensions by comparing offset* to computed and
                // faking a content-box to get border and padding (gh-3699)
                if ( isBorderBox && scrollboxSizeBuggy ) {
                    subtract -= Math.ceil(
                        elem[ "offset" + dimension[ 0 ].toUpperCase() + dimension.slice( 1 ) ] -
                        parseFloat( styles[ dimension ] ) -
                        boxModelAdjustment( elem, dimension, "border", false, styles ) -
                        0.5
                    );
                }

                // Convert to pixels if value adjustment is needed
                if ( subtract && ( matches = rcssNum.exec( value ) ) &&
                    ( matches[ 3 ] || "px" ) !== "px" ) {

                    elem.style[ dimension ] = value;
                    value = jQuery.css( elem, dimension );
                }

                return setPositiveNumber( elem, value, subtract );
            }
        };
    } );

    jQuery.cssHooks.marginLeft = addGetHookIf( support.reliableMarginLeft,
        function( elem, computed ) {
            if ( computed ) {
                return ( parseFloat( curCSS( elem, "marginLeft" ) ) ||
                    elem.getBoundingClientRect().left -
                    swap( elem, { marginLeft: 0 }, function() {
                        return elem.getBoundingClientRect().left;
                    } )
                ) + "px";
            }
        }
    );

// These hooks are used by animate to expand properties
    jQuery.each( {
        margin: "",
        padding: "",
        border: "Width"
    }, function( prefix, suffix ) {
        jQuery.cssHooks[ prefix + suffix ] = {
            expand: function( value ) {
                var i = 0,
                    expanded = {},

                    // Assumes a single number if not a string
                    parts = typeof value === "string" ? value.split( " " ) : [ value ];

                for ( ; i < 4; i++ ) {
                    expanded[ prefix + cssExpand[ i ] + suffix ] =
                        parts[ i ] || parts[ i - 2 ] || parts[ 0 ];
                }

                return expanded;
            }
        };

        if ( prefix !== "margin" ) {
            jQuery.cssHooks[ prefix + suffix ].set = setPositiveNumber;
        }
    } );

    jQuery.fn.extend( {
        css: function( name, value ) {
            return access( this, function( elem, name, value ) {
                var styles, len,
                    map = {},
                    i = 0;

                if ( Array.isArray( name ) ) {
                    styles = getStyles( elem );
                    len = name.length;

                    for ( ; i < len; i++ ) {
                        map[ name[ i ] ] = jQuery.css( elem, name[ i ], false, styles );
                    }

                    return map;
                }

                return value !== undefined ?
                    jQuery.style( elem, name, value ) :
                    jQuery.css( elem, name );
            }, name, value, arguments.length > 1 );
        }
    } );


    function Tween( elem, options, prop, end, easing ) {
        return new Tween.prototype.init( elem, options, prop, end, easing );
    }
    jQuery.Tween = Tween;

    Tween.prototype = {
        constructor: Tween,
        init: function( elem, options, prop, end, easing, unit ) {
            this.elem = elem;
            this.prop = prop;
            this.easing = easing || jQuery.easing._default;
            this.options = options;
            this.start = this.now = this.cur();
            this.end = end;
            this.unit = unit || ( jQuery.cssNumber[ prop ] ? "" : "px" );
        },
        cur: function() {
            var hooks = Tween.propHooks[ this.prop ];

            return hooks && hooks.get ?
                hooks.get( this ) :
                Tween.propHooks._default.get( this );
        },
        run: function( percent ) {
            var eased,
                hooks = Tween.propHooks[ this.prop ];

            if ( this.options.duration ) {
                this.pos = eased = jQuery.easing[ this.easing ](
                    percent, this.options.duration * percent, 0, 1, this.options.duration
                );
            } else {
                this.pos = eased = percent;
            }
            this.now = ( this.end - this.start ) * eased + this.start;

            if ( this.options.step ) {
                this.options.step.call( this.elem, this.now, this );
            }

            if ( hooks && hooks.set ) {
                hooks.set( this );
            } else {
                Tween.propHooks._default.set( this );
            }
            return this;
        }
    };

    Tween.prototype.init.prototype = Tween.prototype;

    Tween.propHooks = {
        _default: {
            get: function( tween ) {
                var result;

                // Use a property on the element directly when it is not a DOM element,
                // or when there is no matching style property that exists.
                if ( tween.elem.nodeType !== 1 ||
                    tween.elem[ tween.prop ] != null && tween.elem.style[ tween.prop ] == null ) {
                    return tween.elem[ tween.prop ];
                }

                // Passing an empty string as a 3rd parameter to .css will automatically
                // attempt a parseFloat and fallback to a string if the parse fails.
                // Simple values such as "10px" are parsed to Float;
                // complex values such as "rotate(1rad)" are returned as-is.
                result = jQuery.css( tween.elem, tween.prop, "" );

                // Empty strings, null, undefined and "auto" are converted to 0.
                return !result || result === "auto" ? 0 : result;
            },
            set: function( tween ) {

                // Use step hook for back compat.
                // Use cssHook if its there.
                // Use .style if available and use plain properties where available.
                if ( jQuery.fx.step[ tween.prop ] ) {
                    jQuery.fx.step[ tween.prop ]( tween );
                } else if ( tween.elem.nodeType === 1 && (
                    jQuery.cssHooks[ tween.prop ] ||
                    tween.elem.style[ finalPropName( tween.prop ) ] != null ) ) {
                    jQuery.style( tween.elem, tween.prop, tween.now + tween.unit );
                } else {
                    tween.elem[ tween.prop ] = tween.now;
                }
            }
        }
    };

// Support: IE <=9 only
// Panic based approach to setting things on disconnected nodes
    Tween.propHooks.scrollTop = Tween.propHooks.scrollLeft = {
        set: function( tween ) {
            if ( tween.elem.nodeType && tween.elem.parentNode ) {
                tween.elem[ tween.prop ] = tween.now;
            }
        }
    };

    jQuery.easing = {
        linear: function( p ) {
            return p;
        },
        swing: function( p ) {
            return 0.5 - Math.cos( p * Math.PI ) / 2;
        },
        _default: "swing"
    };

    jQuery.fx = Tween.prototype.init;

// Back compat <1.8 extension point
    jQuery.fx.step = {};




    var
        fxNow, inProgress,
        rfxtypes = /^(?:toggle|show|hide)$/,
        rrun = /queueHooks$/;

    function schedule() {
        if ( inProgress ) {
            if ( document.hidden === false && window.requestAnimationFrame ) {
                window.requestAnimationFrame( schedule );
            } else {
                window.setTimeout( schedule, jQuery.fx.interval );
            }

            jQuery.fx.tick();
        }
    }

// Animations created synchronously will run synchronously
    function createFxNow() {
        window.setTimeout( function() {
            fxNow = undefined;
        } );
        return ( fxNow = Date.now() );
    }

// Generate parameters to create a standard animation
    function genFx( type, includeWidth ) {
        var which,
            i = 0,
            attrs = { height: type };

        // If we include width, step value is 1 to do all cssExpand values,
        // otherwise step value is 2 to skip over Left and Right
        includeWidth = includeWidth ? 1 : 0;
        for ( ; i < 4; i += 2 - includeWidth ) {
            which = cssExpand[ i ];
            attrs[ "margin" + which ] = attrs[ "padding" + which ] = type;
        }

        if ( includeWidth ) {
            attrs.opacity = attrs.width = type;
        }

        return attrs;
    }

    function createTween( value, prop, animation ) {
        var tween,
            collection = ( Animation.tweeners[ prop ] || [] ).concat( Animation.tweeners[ "*" ] ),
            index = 0,
            length = collection.length;
        for ( ; index < length; index++ ) {
            if ( ( tween = collection[ index ].call( animation, prop, value ) ) ) {

                // We're done with this property
                return tween;
            }
        }
    }

    function defaultPrefilter( elem, props, opts ) {
        var prop, value, toggle, hooks, oldfire, propTween, restoreDisplay, display,
            isBox = "width" in props || "height" in props,
            anim = this,
            orig = {},
            style = elem.style,
            hidden = elem.nodeType && isHiddenWithinTree( elem ),
            dataShow = dataPriv.get( elem, "fxshow" );

        // Queue-skipping animations hijack the fx hooks
        if ( !opts.queue ) {
            hooks = jQuery._queueHooks( elem, "fx" );
            if ( hooks.unqueued == null ) {
                hooks.unqueued = 0;
                oldfire = hooks.empty.fire;
                hooks.empty.fire = function() {
                    if ( !hooks.unqueued ) {
                        oldfire();
                    }
                };
            }
            hooks.unqueued++;

            anim.always( function() {

                // Ensure the complete handler is called before this completes
                anim.always( function() {
                    hooks.unqueued--;
                    if ( !jQuery.queue( elem, "fx" ).length ) {
                        hooks.empty.fire();
                    }
                } );
            } );
        }

        // Detect show/hide animations
        for ( prop in props ) {
            value = props[ prop ];
            if ( rfxtypes.test( value ) ) {
                delete props[ prop ];
                toggle = toggle || value === "toggle";
                if ( value === ( hidden ? "hide" : "show" ) ) {

                    // Pretend to be hidden if this is a "show" and
                    // there is still data from a stopped show/hide
                    if ( value === "show" && dataShow && dataShow[ prop ] !== undefined ) {
                        hidden = true;

                        // Ignore all other no-op show/hide data
                    } else {
                        continue;
                    }
                }
                orig[ prop ] = dataShow && dataShow[ prop ] || jQuery.style( elem, prop );
            }
        }

        // Bail out if this is a no-op like .hide().hide()
        propTween = !jQuery.isEmptyObject( props );
        if ( !propTween && jQuery.isEmptyObject( orig ) ) {
            return;
        }

        // Restrict "overflow" and "display" styles during box animations
        if ( isBox && elem.nodeType === 1 ) {

            // Support: IE <=9 - 11, Edge 12 - 15
            // Record all 3 overflow attributes because IE does not infer the shorthand
            // from identically-valued overflowX and overflowY and Edge just mirrors
            // the overflowX value there.
            opts.overflow = [ style.overflow, style.overflowX, style.overflowY ];

            // Identify a display type, preferring old show/hide data over the CSS cascade
            restoreDisplay = dataShow && dataShow.display;
            if ( restoreDisplay == null ) {
                restoreDisplay = dataPriv.get( elem, "display" );
            }
            display = jQuery.css( elem, "display" );
            if ( display === "none" ) {
                if ( restoreDisplay ) {
                    display = restoreDisplay;
                } else {

                    // Get nonempty value(s) by temporarily forcing visibility
                    showHide( [ elem ], true );
                    restoreDisplay = elem.style.display || restoreDisplay;
                    display = jQuery.css( elem, "display" );
                    showHide( [ elem ] );
                }
            }

            // Animate inline elements as inline-block
            if ( display === "inline" || display === "inline-block" && restoreDisplay != null ) {
                if ( jQuery.css( elem, "float" ) === "none" ) {

                    // Restore the original display value at the end of pure show/hide animations
                    if ( !propTween ) {
                        anim.done( function() {
                            style.display = restoreDisplay;
                        } );
                        if ( restoreDisplay == null ) {
                            display = style.display;
                            restoreDisplay = display === "none" ? "" : display;
                        }
                    }
                    style.display = "inline-block";
                }
            }
        }

        if ( opts.overflow ) {
            style.overflow = "hidden";
            anim.always( function() {
                style.overflow = opts.overflow[ 0 ];
                style.overflowX = opts.overflow[ 1 ];
                style.overflowY = opts.overflow[ 2 ];
            } );
        }

        // Implement show/hide animations
        propTween = false;
        for ( prop in orig ) {

            // General show/hide setup for this element animation
            if ( !propTween ) {
                if ( dataShow ) {
                    if ( "hidden" in dataShow ) {
                        hidden = dataShow.hidden;
                    }
                } else {
                    dataShow = dataPriv.access( elem, "fxshow", { display: restoreDisplay } );
                }

                // Store hidden/visible for toggle so `.stop().toggle()` "reverses"
                if ( toggle ) {
                    dataShow.hidden = !hidden;
                }

                // Show elements before animating them
                if ( hidden ) {
                    showHide( [ elem ], true );
                }

                /* eslint-disable no-loop-func */

                anim.done( function() {

                    /* eslint-enable no-loop-func */

                    // The final step of a "hide" animation is actually hiding the element
                    if ( !hidden ) {
                        showHide( [ elem ] );
                    }
                    dataPriv.remove( elem, "fxshow" );
                    for ( prop in orig ) {
                        jQuery.style( elem, prop, orig[ prop ] );
                    }
                } );
            }

            // Per-property setup
            propTween = createTween( hidden ? dataShow[ prop ] : 0, prop, anim );
            if ( !( prop in dataShow ) ) {
                dataShow[ prop ] = propTween.start;
                if ( hidden ) {
                    propTween.end = propTween.start;
                    propTween.start = 0;
                }
            }
        }
    }

    function propFilter( props, specialEasing ) {
        var index, name, easing, value, hooks;

        // camelCase, specialEasing and expand cssHook pass
        for ( index in props ) {
            name = camelCase( index );
            easing = specialEasing[ name ];
            value = props[ index ];
            if ( Array.isArray( value ) ) {
                easing = value[ 1 ];
                value = props[ index ] = value[ 0 ];
            }

            if ( index !== name ) {
                props[ name ] = value;
                delete props[ index ];
            }

            hooks = jQuery.cssHooks[ name ];
            if ( hooks && "expand" in hooks ) {
                value = hooks.expand( value );
                delete props[ name ];

                // Not quite $.extend, this won't overwrite existing keys.
                // Reusing 'index' because we have the correct "name"
                for ( index in value ) {
                    if ( !( index in props ) ) {
                        props[ index ] = value[ index ];
                        specialEasing[ index ] = easing;
                    }
                }
            } else {
                specialEasing[ name ] = easing;
            }
        }
    }

    function Animation( elem, properties, options ) {
        var result,
            stopped,
            index = 0,
            length = Animation.prefilters.length,
            deferred = jQuery.Deferred().always( function() {

                // Don't match elem in the :animated selector
                delete tick.elem;
            } ),
            tick = function() {
                if ( stopped ) {
                    return false;
                }
                var currentTime = fxNow || createFxNow(),
                    remaining = Math.max( 0, animation.startTime + animation.duration - currentTime ),

                    // Support: Android 2.3 only
                    // Archaic crash bug won't allow us to use `1 - ( 0.5 || 0 )` (#12497)
                    temp = remaining / animation.duration || 0,
                    percent = 1 - temp,
                    index = 0,
                    length = animation.tweens.length;

                for ( ; index < length; index++ ) {
                    animation.tweens[ index ].run( percent );
                }

                deferred.notifyWith( elem, [ animation, percent, remaining ] );

                // If there's more to do, yield
                if ( percent < 1 && length ) {
                    return remaining;
                }

                // If this was an empty animation, synthesize a final progress notification
                if ( !length ) {
                    deferred.notifyWith( elem, [ animation, 1, 0 ] );
                }

                // Resolve the animation and report its conclusion
                deferred.resolveWith( elem, [ animation ] );
                return false;
            },
            animation = deferred.promise( {
                elem: elem,
                props: jQuery.extend( {}, properties ),
                opts: jQuery.extend( true, {
                    specialEasing: {},
                    easing: jQuery.easing._default
                }, options ),
                originalProperties: properties,
                originalOptions: options,
                startTime: fxNow || createFxNow(),
                duration: options.duration,
                tweens: [],
                createTween: function( prop, end ) {
                    var tween = jQuery.Tween( elem, animation.opts, prop, end,
                        animation.opts.specialEasing[ prop ] || animation.opts.easing );
                    animation.tweens.push( tween );
                    return tween;
                },
                stop: function( gotoEnd ) {
                    var index = 0,

                        // If we are going to the end, we want to run all the tweens
                        // otherwise we skip this part
                        length = gotoEnd ? animation.tweens.length : 0;
                    if ( stopped ) {
                        return this;
                    }
                    stopped = true;
                    for ( ; index < length; index++ ) {
                        animation.tweens[ index ].run( 1 );
                    }

                    // Resolve when we played the last frame; otherwise, reject
                    if ( gotoEnd ) {
                        deferred.notifyWith( elem, [ animation, 1, 0 ] );
                        deferred.resolveWith( elem, [ animation, gotoEnd ] );
                    } else {
                        deferred.rejectWith( elem, [ animation, gotoEnd ] );
                    }
                    return this;
                }
            } ),
            props = animation.props;

        propFilter( props, animation.opts.specialEasing );

        for ( ; index < length; index++ ) {
            result = Animation.prefilters[ index ].call( animation, elem, props, animation.opts );
            if ( result ) {
                if ( isFunction( result.stop ) ) {
                    jQuery._queueHooks( animation.elem, animation.opts.queue ).stop =
                        result.stop.bind( result );
                }
                return result;
            }
        }

        jQuery.map( props, createTween, animation );

        if ( isFunction( animation.opts.start ) ) {
            animation.opts.start.call( elem, animation );
        }

        // Attach callbacks from options
        animation
            .progress( animation.opts.progress )
            .done( animation.opts.done, animation.opts.complete )
            .fail( animation.opts.fail )
            .always( animation.opts.always );

        jQuery.fx.timer(
            jQuery.extend( tick, {
                elem: elem,
                anim: animation,
                queue: animation.opts.queue
            } )
        );

        return animation;
    }

    jQuery.Animation = jQuery.extend( Animation, {

        tweeners: {
            "*": [ function( prop, value ) {
                var tween = this.createTween( prop, value );
                adjustCSS( tween.elem, prop, rcssNum.exec( value ), tween );
                return tween;
            } ]
        },

        tweener: function( props, callback ) {
            if ( isFunction( props ) ) {
                callback = props;
                props = [ "*" ];
            } else {
                props = props.match( rnothtmlwhite );
            }

            var prop,
                index = 0,
                length = props.length;

            for ( ; index < length; index++ ) {
                prop = props[ index ];
                Animation.tweeners[ prop ] = Animation.tweeners[ prop ] || [];
                Animation.tweeners[ prop ].unshift( callback );
            }
        },

        prefilters: [ defaultPrefilter ],

        prefilter: function( callback, prepend ) {
            if ( prepend ) {
                Animation.prefilters.unshift( callback );
            } else {
                Animation.prefilters.push( callback );
            }
        }
    } );

    jQuery.speed = function( speed, easing, fn ) {
        var opt = speed && typeof speed === "object" ? jQuery.extend( {}, speed ) : {
            complete: fn || !fn && easing ||
                isFunction( speed ) && speed,
            duration: speed,
            easing: fn && easing || easing && !isFunction( easing ) && easing
        };

        // Go to the end state if fx are off
        if ( jQuery.fx.off ) {
            opt.duration = 0;

        } else {
            if ( typeof opt.duration !== "number" ) {
                if ( opt.duration in jQuery.fx.speeds ) {
                    opt.duration = jQuery.fx.speeds[ opt.duration ];

                } else {
                    opt.duration = jQuery.fx.speeds._default;
                }
            }
        }

        // Normalize opt.queue - true/undefined/null -> "fx"
        if ( opt.queue == null || opt.queue === true ) {
            opt.queue = "fx";
        }

        // Queueing
        opt.old = opt.complete;

        opt.complete = function() {
            if ( isFunction( opt.old ) ) {
                opt.old.call( this );
            }

            if ( opt.queue ) {
                jQuery.dequeue( this, opt.queue );
            }
        };

        return opt;
    };

    jQuery.fn.extend( {
        fadeTo: function( speed, to, easing, callback ) {

            // Show any hidden elements after setting opacity to 0
            return this.filter( isHiddenWithinTree ).css( "opacity", 0 ).show()

                // Animate to the value specified
                .end().animate( { opacity: to }, speed, easing, callback );
        },
        animate: function( prop, speed, easing, callback ) {
            var empty = jQuery.isEmptyObject( prop ),
                optall = jQuery.speed( speed, easing, callback ),
                doAnimation = function() {

                    // Operate on a copy of prop so per-property easing won't be lost
                    var anim = Animation( this, jQuery.extend( {}, prop ), optall );

                    // Empty animations, or finishing resolves immediately
                    if ( empty || dataPriv.get( this, "finish" ) ) {
                        anim.stop( true );
                    }
                };

            doAnimation.finish = doAnimation;

            return empty || optall.queue === false ?
                this.each( doAnimation ) :
                this.queue( optall.queue, doAnimation );
        },
        stop: function( type, clearQueue, gotoEnd ) {
            var stopQueue = function( hooks ) {
                var stop = hooks.stop;
                delete hooks.stop;
                stop( gotoEnd );
            };

            if ( typeof type !== "string" ) {
                gotoEnd = clearQueue;
                clearQueue = type;
                type = undefined;
            }
            if ( clearQueue ) {
                this.queue( type || "fx", [] );
            }

            return this.each( function() {
                var dequeue = true,
                    index = type != null && type + "queueHooks",
                    timers = jQuery.timers,
                    data = dataPriv.get( this );

                if ( index ) {
                    if ( data[ index ] && data[ index ].stop ) {
                        stopQueue( data[ index ] );
                    }
                } else {
                    for ( index in data ) {
                        if ( data[ index ] && data[ index ].stop && rrun.test( index ) ) {
                            stopQueue( data[ index ] );
                        }
                    }
                }

                for ( index = timers.length; index--; ) {
                    if ( timers[ index ].elem === this &&
                        ( type == null || timers[ index ].queue === type ) ) {

                        timers[ index ].anim.stop( gotoEnd );
                        dequeue = false;
                        timers.splice( index, 1 );
                    }
                }

                // Start the next in the queue if the last step wasn't forced.
                // Timers currently will call their complete callbacks, which
                // will dequeue but only if they were gotoEnd.
                if ( dequeue || !gotoEnd ) {
                    jQuery.dequeue( this, type );
                }
            } );
        },
        finish: function( type ) {
            if ( type !== false ) {
                type = type || "fx";
            }
            return this.each( function() {
                var index,
                    data = dataPriv.get( this ),
                    queue = data[ type + "queue" ],
                    hooks = data[ type + "queueHooks" ],
                    timers = jQuery.timers,
                    length = queue ? queue.length : 0;

                // Enable finishing flag on private data
                data.finish = true;

                // Empty the queue first
                jQuery.queue( this, type, [] );

                if ( hooks && hooks.stop ) {
                    hooks.stop.call( this, true );
                }

                // Look for any active animations, and finish them
                for ( index = timers.length; index--; ) {
                    if ( timers[ index ].elem === this && timers[ index ].queue === type ) {
                        timers[ index ].anim.stop( true );
                        timers.splice( index, 1 );
                    }
                }

                // Look for any animations in the old queue and finish them
                for ( index = 0; index < length; index++ ) {
                    if ( queue[ index ] && queue[ index ].finish ) {
                        queue[ index ].finish.call( this );
                    }
                }

                // Turn off finishing flag
                delete data.finish;
            } );
        }
    } );

    jQuery.each( [ "toggle", "show", "hide" ], function( _i, name ) {
        var cssFn = jQuery.fn[ name ];
        jQuery.fn[ name ] = function( speed, easing, callback ) {
            return speed == null || typeof speed === "boolean" ?
                cssFn.apply( this, arguments ) :
                this.animate( genFx( name, true ), speed, easing, callback );
        };
    } );

// Generate shortcuts for custom animations
    jQuery.each( {
        slideDown: genFx( "show" ),
        slideUp: genFx( "hide" ),
        slideToggle: genFx( "toggle" ),
        fadeIn: { opacity: "show" },
        fadeOut: { opacity: "hide" },
        fadeToggle: { opacity: "toggle" }
    }, function( name, props ) {
        jQuery.fn[ name ] = function( speed, easing, callback ) {
            return this.animate( props, speed, easing, callback );
        };
    } );

    jQuery.timers = [];
    jQuery.fx.tick = function() {
        var timer,
            i = 0,
            timers = jQuery.timers;

        fxNow = Date.now();

        for ( ; i < timers.length; i++ ) {
            timer = timers[ i ];

            // Run the timer and safely remove it when done (allowing for external removal)
            if ( !timer() && timers[ i ] === timer ) {
                timers.splice( i--, 1 );
            }
        }

        if ( !timers.length ) {
            jQuery.fx.stop();
        }
        fxNow = undefined;
    };

    jQuery.fx.timer = function( timer ) {
        jQuery.timers.push( timer );
        jQuery.fx.start();
    };

    jQuery.fx.interval = 13;
    jQuery.fx.start = function() {
        if ( inProgress ) {
            return;
        }

        inProgress = true;
        schedule();
    };

    jQuery.fx.stop = function() {
        inProgress = null;
    };

    jQuery.fx.speeds = {
        slow: 600,
        fast: 200,

        // Default speed
        _default: 400
    };


// Based off of the plugin by Clint Helfers, with permission.
// https://web.archive.org/web/20100324014747/http://blindsignals.com/index.php/2009/07/jquery-delay/
    jQuery.fn.delay = function( time, type ) {
        time = jQuery.fx ? jQuery.fx.speeds[ time ] || time : time;
        type = type || "fx";

        return this.queue( type, function( next, hooks ) {
            var timeout = window.setTimeout( next, time );
            hooks.stop = function() {
                window.clearTimeout( timeout );
            };
        } );
    };


    ( function() {
        var input = document.createElement( "input" ),
            select = document.createElement( "select" ),
            opt = select.appendChild( document.createElement( "option" ) );

        input.type = "checkbox";

        // Support: Android <=4.3 only
        // Default value for a checkbox should be "on"
        support.checkOn = input.value !== "";

        // Support: IE <=11 only
        // Must access selectedIndex to make default options select
        support.optSelected = opt.selected;

        // Support: IE <=11 only
        // An input loses its value after becoming a radio
        input = document.createElement( "input" );
        input.value = "t";
        input.type = "radio";
        support.radioValue = input.value === "t";
    } )();


    var boolHook,
        attrHandle = jQuery.expr.attrHandle;

    jQuery.fn.extend( {
        attr: function( name, value ) {
            return access( this, jQuery.attr, name, value, arguments.length > 1 );
        },

        removeAttr: function( name ) {
            return this.each( function() {
                jQuery.removeAttr( this, name );
            } );
        }
    } );

    jQuery.extend( {
        attr: function( elem, name, value ) {
            var ret, hooks,
                nType = elem.nodeType;

            // Don't get/set attributes on text, comment and attribute nodes
            if ( nType === 3 || nType === 8 || nType === 2 ) {
                return;
            }

            // Fallback to prop when attributes are not supported
            if ( typeof elem.getAttribute === "undefined" ) {
                return jQuery.prop( elem, name, value );
            }

            // Attribute hooks are determined by the lowercase version
            // Grab necessary hook if one is defined
            if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
                hooks = jQuery.attrHooks[ name.toLowerCase() ] ||
                    ( jQuery.expr.match.bool.test( name ) ? boolHook : undefined );
            }

            if ( value !== undefined ) {
                if ( value === null ) {
                    jQuery.removeAttr( elem, name );
                    return;
                }

                if ( hooks && "set" in hooks &&
                    ( ret = hooks.set( elem, value, name ) ) !== undefined ) {
                    return ret;
                }

                elem.setAttribute( name, value + "" );
                return value;
            }

            if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {
                return ret;
            }

            ret = jQuery.find.attr( elem, name );

            // Non-existent attributes return null, we normalize to undefined
            return ret == null ? undefined : ret;
        },

        attrHooks: {
            type: {
                set: function( elem, value ) {
                    if ( !support.radioValue && value === "radio" &&
                        nodeName( elem, "input" ) ) {
                        var val = elem.value;
                        elem.setAttribute( "type", value );
                        if ( val ) {
                            elem.value = val;
                        }
                        return value;
                    }
                }
            }
        },

        removeAttr: function( elem, value ) {
            var name,
                i = 0,

                // Attribute names can contain non-HTML whitespace characters
                // https://html.spec.whatwg.org/multipage/syntax.html#attributes-2
                attrNames = value && value.match( rnothtmlwhite );

            if ( attrNames && elem.nodeType === 1 ) {
                while ( ( name = attrNames[ i++ ] ) ) {
                    elem.removeAttribute( name );
                }
            }
        }
    } );

// Hooks for boolean attributes
    boolHook = {
        set: function( elem, value, name ) {
            if ( value === false ) {

                // Remove boolean attributes when set to false
                jQuery.removeAttr( elem, name );
            } else {
                elem.setAttribute( name, name );
            }
            return name;
        }
    };

    jQuery.each( jQuery.expr.match.bool.source.match( /\w+/g ), function( _i, name ) {
        var getter = attrHandle[ name ] || jQuery.find.attr;

        attrHandle[ name ] = function( elem, name, isXML ) {
            var ret, handle,
                lowercaseName = name.toLowerCase();

            if ( !isXML ) {

                // Avoid an infinite loop by temporarily removing this function from the getter
                handle = attrHandle[ lowercaseName ];
                attrHandle[ lowercaseName ] = ret;
                ret = getter( elem, name, isXML ) != null ?
                    lowercaseName :
                    null;
                attrHandle[ lowercaseName ] = handle;
            }
            return ret;
        };
    } );




    var rfocusable = /^(?:input|select|textarea|button)$/i,
        rclickable = /^(?:a|area)$/i;

    jQuery.fn.extend( {
        prop: function( name, value ) {
            return access( this, jQuery.prop, name, value, arguments.length > 1 );
        },

        removeProp: function( name ) {
            return this.each( function() {
                delete this[ jQuery.propFix[ name ] || name ];
            } );
        }
    } );

    jQuery.extend( {
        prop: function( elem, name, value ) {
            var ret, hooks,
                nType = elem.nodeType;

            // Don't get/set properties on text, comment and attribute nodes
            if ( nType === 3 || nType === 8 || nType === 2 ) {
                return;
            }

            if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {

                // Fix name and attach hooks
                name = jQuery.propFix[ name ] || name;
                hooks = jQuery.propHooks[ name ];
            }

            if ( value !== undefined ) {
                if ( hooks && "set" in hooks &&
                    ( ret = hooks.set( elem, value, name ) ) !== undefined ) {
                    return ret;
                }

                return ( elem[ name ] = value );
            }

            if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {
                return ret;
            }

            return elem[ name ];
        },

        propHooks: {
            tabIndex: {
                get: function( elem ) {

                    // Support: IE <=9 - 11 only
                    // elem.tabIndex doesn't always return the
                    // correct value when it hasn't been explicitly set
                    // https://web.archive.org/web/20141116233347/http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/
                    // Use proper attribute retrieval(#12072)
                    var tabindex = jQuery.find.attr( elem, "tabindex" );

                    if ( tabindex ) {
                        return parseInt( tabindex, 10 );
                    }

                    if (
                        rfocusable.test( elem.nodeName ) ||
                        rclickable.test( elem.nodeName ) &&
                        elem.href
                    ) {
                        return 0;
                    }

                    return -1;
                }
            }
        },

        propFix: {
            "for": "htmlFor",
            "class": "className"
        }
    } );

// Support: IE <=11 only
// Accessing the selectedIndex property
// forces the browser to respect setting selected
// on the option
// The getter ensures a default option is selected
// when in an optgroup
// eslint rule "no-unused-expressions" is disabled for this code
// since it considers such accessions noop
    if ( !support.optSelected ) {
        jQuery.propHooks.selected = {
            get: function( elem ) {

                /* eslint no-unused-expressions: "off" */

                var parent = elem.parentNode;
                if ( parent && parent.parentNode ) {
                    parent.parentNode.selectedIndex;
                }
                return null;
            },
            set: function( elem ) {

                /* eslint no-unused-expressions: "off" */

                var parent = elem.parentNode;
                if ( parent ) {
                    parent.selectedIndex;

                    if ( parent.parentNode ) {
                        parent.parentNode.selectedIndex;
                    }
                }
            }
        };
    }

    jQuery.each( [
        "tabIndex",
        "readOnly",
        "maxLength",
        "cellSpacing",
        "cellPadding",
        "rowSpan",
        "colSpan",
        "useMap",
        "frameBorder",
        "contentEditable"
    ], function() {
        jQuery.propFix[ this.toLowerCase() ] = this;
    } );




    // Strip and collapse whitespace according to HTML spec
    // https://infra.spec.whatwg.org/#strip-and-collapse-ascii-whitespace
    function stripAndCollapse( value ) {
        var tokens = value.match( rnothtmlwhite ) || [];
        return tokens.join( " " );
    }


    function getClass( elem ) {
        return elem.getAttribute && elem.getAttribute( "class" ) || "";
    }

    function classesToArray( value ) {
        if ( Array.isArray( value ) ) {
            return value;
        }
        if ( typeof value === "string" ) {
            return value.match( rnothtmlwhite ) || [];
        }
        return [];
    }

    jQuery.fn.extend( {
        addClass: function( value ) {
            var classes, elem, cur, curValue, clazz, j, finalValue,
                i = 0;

            if ( isFunction( value ) ) {
                return this.each( function( j ) {
                    jQuery( this ).addClass( value.call( this, j, getClass( this ) ) );
                } );
            }

            classes = classesToArray( value );

            if ( classes.length ) {
                while ( ( elem = this[ i++ ] ) ) {
                    curValue = getClass( elem );
                    cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " );

                    if ( cur ) {
                        j = 0;
                        while ( ( clazz = classes[ j++ ] ) ) {
                            if ( cur.indexOf( " " + clazz + " " ) < 0 ) {
                                cur += clazz + " ";
                            }
                        }

                        // Only assign if different to avoid unneeded rendering.
                        finalValue = stripAndCollapse( cur );
                        if ( curValue !== finalValue ) {
                            elem.setAttribute( "class", finalValue );
                        }
                    }
                }
            }

            return this;
        },

        removeClass: function( value ) {
            var classes, elem, cur, curValue, clazz, j, finalValue,
                i = 0;

            if ( isFunction( value ) ) {
                return this.each( function( j ) {
                    jQuery( this ).removeClass( value.call( this, j, getClass( this ) ) );
                } );
            }

            if ( !arguments.length ) {
                return this.attr( "class", "" );
            }

            classes = classesToArray( value );

            if ( classes.length ) {
                while ( ( elem = this[ i++ ] ) ) {
                    curValue = getClass( elem );

                    // This expression is here for better compressibility (see addClass)
                    cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " );

                    if ( cur ) {
                        j = 0;
                        while ( ( clazz = classes[ j++ ] ) ) {

                            // Remove *all* instances
                            while ( cur.indexOf( " " + clazz + " " ) > -1 ) {
                                cur = cur.replace( " " + clazz + " ", " " );
                            }
                        }

                        // Only assign if different to avoid unneeded rendering.
                        finalValue = stripAndCollapse( cur );
                        if ( curValue !== finalValue ) {
                            elem.setAttribute( "class", finalValue );
                        }
                    }
                }
            }

            return this;
        },

        toggleClass: function( value, stateVal ) {
            var type = typeof value,
                isValidValue = type === "string" || Array.isArray( value );

            if ( typeof stateVal === "boolean" && isValidValue ) {
                return stateVal ? this.addClass( value ) : this.removeClass( value );
            }

            if ( isFunction( value ) ) {
                return this.each( function( i ) {
                    jQuery( this ).toggleClass(
                        value.call( this, i, getClass( this ), stateVal ),
                        stateVal
                    );
                } );
            }

            return this.each( function() {
                var className, i, self, classNames;

                if ( isValidValue ) {

                    // Toggle individual class names
                    i = 0;
                    self = jQuery( this );
                    classNames = classesToArray( value );

                    while ( ( className = classNames[ i++ ] ) ) {

                        // Check each className given, space separated list
                        if ( self.hasClass( className ) ) {
                            self.removeClass( className );
                        } else {
                            self.addClass( className );
                        }
                    }

                    // Toggle whole class name
                } else if ( value === undefined || type === "boolean" ) {
                    className = getClass( this );
                    if ( className ) {

                        // Store className if set
                        dataPriv.set( this, "__className__", className );
                    }

                    // If the element has a class name or if we're passed `false`,
                    // then remove the whole classname (if there was one, the above saved it).
                    // Otherwise bring back whatever was previously saved (if anything),
                    // falling back to the empty string if nothing was stored.
                    if ( this.setAttribute ) {
                        this.setAttribute( "class",
                            className || value === false ?
                                "" :
                                dataPriv.get( this, "__className__" ) || ""
                        );
                    }
                }
            } );
        },

        hasClass: function( selector ) {
            var className, elem,
                i = 0;

            className = " " + selector + " ";
            while ( ( elem = this[ i++ ] ) ) {
                if ( elem.nodeType === 1 &&
                    ( " " + stripAndCollapse( getClass( elem ) ) + " " ).indexOf( className ) > -1 ) {
                    return true;
                }
            }

            return false;
        }
    } );




    var rreturn = /\r/g;

    jQuery.fn.extend( {
        val: function( value ) {
            var hooks, ret, valueIsFunction,
                elem = this[ 0 ];

            if ( !arguments.length ) {
                if ( elem ) {
                    hooks = jQuery.valHooks[ elem.type ] ||
                        jQuery.valHooks[ elem.nodeName.toLowerCase() ];

                    if ( hooks &&
                        "get" in hooks &&
                        ( ret = hooks.get( elem, "value" ) ) !== undefined
                    ) {
                        return ret;
                    }

                    ret = elem.value;

                    // Handle most common string cases
                    if ( typeof ret === "string" ) {
                        return ret.replace( rreturn, "" );
                    }

                    // Handle cases where value is null/undef or number
                    return ret == null ? "" : ret;
                }

                return;
            }

            valueIsFunction = isFunction( value );

            return this.each( function( i ) {
                var val;

                if ( this.nodeType !== 1 ) {
                    return;
                }

                if ( valueIsFunction ) {
                    val = value.call( this, i, jQuery( this ).val() );
                } else {
                    val = value;
                }

                // Treat null/undefined as ""; convert numbers to string
                if ( val == null ) {
                    val = "";

                } else if ( typeof val === "number" ) {
                    val += "";

                } else if ( Array.isArray( val ) ) {
                    val = jQuery.map( val, function( value ) {
                        return value == null ? "" : value + "";
                    } );
                }

                hooks = jQuery.valHooks[ this.type ] || jQuery.valHooks[ this.nodeName.toLowerCase() ];

                // If set returns undefined, fall back to normal setting
                if ( !hooks || !( "set" in hooks ) || hooks.set( this, val, "value" ) === undefined ) {
                    this.value = val;
                }
            } );
        }
    } );

    jQuery.extend( {
        valHooks: {
            option: {
                get: function( elem ) {

                    var val = jQuery.find.attr( elem, "value" );
                    return val != null ?
                        val :

                        // Support: IE <=10 - 11 only
                        // option.text throws exceptions (#14686, #14858)
                        // Strip and collapse whitespace
                        // https://html.spec.whatwg.org/#strip-and-collapse-whitespace
                        stripAndCollapse( jQuery.text( elem ) );
                }
            },
            select: {
                get: function( elem ) {
                    var value, option, i,
                        options = elem.options,
                        index = elem.selectedIndex,
                        one = elem.type === "select-one",
                        values = one ? null : [],
                        max = one ? index + 1 : options.length;

                    if ( index < 0 ) {
                        i = max;

                    } else {
                        i = one ? index : 0;
                    }

                    // Loop through all the selected options
                    for ( ; i < max; i++ ) {
                        option = options[ i ];

                        // Support: IE <=9 only
                        // IE8-9 doesn't update selected after form reset (#2551)
                        if ( ( option.selected || i === index ) &&

                            // Don't return options that are disabled or in a disabled optgroup
                            !option.disabled &&
                            ( !option.parentNode.disabled ||
                                !nodeName( option.parentNode, "optgroup" ) ) ) {

                            // Get the specific value for the option
                            value = jQuery( option ).val();

                            // We don't need an array for one selects
                            if ( one ) {
                                return value;
                            }

                            // Multi-Selects return an array
                            values.push( value );
                        }
                    }

                    return values;
                },

                set: function( elem, value ) {
                    var optionSet, option,
                        options = elem.options,
                        values = jQuery.makeArray( value ),
                        i = options.length;

                    while ( i-- ) {
                        option = options[ i ];

                        /* eslint-disable no-cond-assign */

                        if ( option.selected =
                            jQuery.inArray( jQuery.valHooks.option.get( option ), values ) > -1
                        ) {
                            optionSet = true;
                        }

                        /* eslint-enable no-cond-assign */
                    }

                    // Force browsers to behave consistently when non-matching value is set
                    if ( !optionSet ) {
                        elem.selectedIndex = -1;
                    }
                    return values;
                }
            }
        }
    } );

// Radios and checkboxes getter/setter
    jQuery.each( [ "radio", "checkbox" ], function() {
        jQuery.valHooks[ this ] = {
            set: function( elem, value ) {
                if ( Array.isArray( value ) ) {
                    return ( elem.checked = jQuery.inArray( jQuery( elem ).val(), value ) > -1 );
                }
            }
        };
        if ( !support.checkOn ) {
            jQuery.valHooks[ this ].get = function( elem ) {
                return elem.getAttribute( "value" ) === null ? "on" : elem.value;
            };
        }
    } );




// Return jQuery for attributes-only inclusion


    support.focusin = "onfocusin" in window;


    var rfocusMorph = /^(?:focusinfocus|focusoutblur)$/,
        stopPropagationCallback = function( e ) {
            e.stopPropagation();
        };

    jQuery.extend( jQuery.event, {

        trigger: function( event, data, elem, onlyHandlers ) {

            var i, cur, tmp, bubbleType, ontype, handle, special, lastElement,
                eventPath = [ elem || document ],
                type = hasOwn.call( event, "type" ) ? event.type : event,
                namespaces = hasOwn.call( event, "namespace" ) ? event.namespace.split( "." ) : [];

            cur = lastElement = tmp = elem = elem || document;

            // Don't do events on text and comment nodes
            if ( elem.nodeType === 3 || elem.nodeType === 8 ) {
                return;
            }

            // focus/blur morphs to focusin/out; ensure we're not firing them right now
            if ( rfocusMorph.test( type + jQuery.event.triggered ) ) {
                return;
            }

            if ( type.indexOf( "." ) > -1 ) {

                // Namespaced trigger; create a regexp to match event type in handle()
                namespaces = type.split( "." );
                type = namespaces.shift();
                namespaces.sort();
            }
            ontype = type.indexOf( ":" ) < 0 && "on" + type;

            // Caller can pass in a jQuery.Event object, Object, or just an event type string
            event = event[ jQuery.expando ] ?
                event :
                new jQuery.Event( type, typeof event === "object" && event );

            // Trigger bitmask: & 1 for native handlers; & 2 for jQuery (always true)
            event.isTrigger = onlyHandlers ? 2 : 3;
            event.namespace = namespaces.join( "." );
            event.rnamespace = event.namespace ?
                new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" ) :
                null;

            // Clean up the event in case it is being reused
            event.result = undefined;
            if ( !event.target ) {
                event.target = elem;
            }

            // Clone any incoming data and prepend the event, creating the handler arg list
            data = data == null ?
                [ event ] :
                jQuery.makeArray( data, [ event ] );

            // Allow special events to draw outside the lines
            special = jQuery.event.special[ type ] || {};
            if ( !onlyHandlers && special.trigger && special.trigger.apply( elem, data ) === false ) {
                return;
            }

            // Determine event propagation path in advance, per W3C events spec (#9951)
            // Bubble up to document, then to window; watch for a global ownerDocument var (#9724)
            if ( !onlyHandlers && !special.noBubble && !isWindow( elem ) ) {

                bubbleType = special.delegateType || type;
                if ( !rfocusMorph.test( bubbleType + type ) ) {
                    cur = cur.parentNode;
                }
                for ( ; cur; cur = cur.parentNode ) {
                    eventPath.push( cur );
                    tmp = cur;
                }

                // Only add window if we got to document (e.g., not plain obj or detached DOM)
                if ( tmp === ( elem.ownerDocument || document ) ) {
                    eventPath.push( tmp.defaultView || tmp.parentWindow || window );
                }
            }

            // Fire handlers on the event path
            i = 0;
            while ( ( cur = eventPath[ i++ ] ) && !event.isPropagationStopped() ) {
                lastElement = cur;
                event.type = i > 1 ?
                    bubbleType :
                    special.bindType || type;

                // jQuery handler
                handle = ( dataPriv.get( cur, "events" ) || Object.create( null ) )[ event.type ] &&
                    dataPriv.get( cur, "handle" );
                if ( handle ) {
                    handle.apply( cur, data );
                }

                // Native handler
                handle = ontype && cur[ ontype ];
                if ( handle && handle.apply && acceptData( cur ) ) {
                    event.result = handle.apply( cur, data );
                    if ( event.result === false ) {
                        event.preventDefault();
                    }
                }
            }
            event.type = type;

            // If nobody prevented the default action, do it now
            if ( !onlyHandlers && !event.isDefaultPrevented() ) {

                if ( ( !special._default ||
                        special._default.apply( eventPath.pop(), data ) === false ) &&
                    acceptData( elem ) ) {

                    // Call a native DOM method on the target with the same name as the event.
                    // Don't do default actions on window, that's where global variables be (#6170)
                    if ( ontype && isFunction( elem[ type ] ) && !isWindow( elem ) ) {

                        // Don't re-trigger an onFOO event when we call its FOO() method
                        tmp = elem[ ontype ];

                        if ( tmp ) {
                            elem[ ontype ] = null;
                        }

                        // Prevent re-triggering of the same event, since we already bubbled it above
                        jQuery.event.triggered = type;

                        if ( event.isPropagationStopped() ) {
                            lastElement.addEventListener( type, stopPropagationCallback );
                        }

                        elem[ type ]();

                        if ( event.isPropagationStopped() ) {
                            lastElement.removeEventListener( type, stopPropagationCallback );
                        }

                        jQuery.event.triggered = undefined;

                        if ( tmp ) {
                            elem[ ontype ] = tmp;
                        }
                    }
                }
            }

            return event.result;
        },

        // Piggyback on a donor event to simulate a different one
        // Used only for `focus(in | out)` events
        simulate: function( type, elem, event ) {
            var e = jQuery.extend(
                new jQuery.Event(),
                event,
                {
                    type: type,
                    isSimulated: true
                }
            );

            jQuery.event.trigger( e, null, elem );
        }

    } );

    jQuery.fn.extend( {

        trigger: function( type, data ) {
            return this.each( function() {
                jQuery.event.trigger( type, data, this );
            } );
        },
        triggerHandler: function( type, data ) {
            var elem = this[ 0 ];
            if ( elem ) {
                return jQuery.event.trigger( type, data, elem, true );
            }
        }
    } );


// Support: Firefox <=44
// Firefox doesn't have focus(in | out) events
// Related ticket - https://bugzilla.mozilla.org/show_bug.cgi?id=687787
//
// Support: Chrome <=48 - 49, Safari <=9.0 - 9.1
// focus(in | out) events fire after focus & blur events,
// which is spec violation - http://www.w3.org/TR/DOM-Level-3-Events/#events-focusevent-event-order
// Related ticket - https://bugs.chromium.org/p/chromium/issues/detail?id=449857
    if ( !support.focusin ) {
        jQuery.each( { focus: "focusin", blur: "focusout" }, function( orig, fix ) {

            // Attach a single capturing handler on the document while someone wants focusin/focusout
            var handler = function( event ) {
                jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ) );
            };

            jQuery.event.special[ fix ] = {
                setup: function() {

                    // Handle: regular nodes (via `this.ownerDocument`), window
                    // (via `this.document`) & document (via `this`).
                    var doc = this.ownerDocument || this.document || this,
                        attaches = dataPriv.access( doc, fix );

                    if ( !attaches ) {
                        doc.addEventListener( orig, handler, true );
                    }
                    dataPriv.access( doc, fix, ( attaches || 0 ) + 1 );
                },
                teardown: function() {
                    var doc = this.ownerDocument || this.document || this,
                        attaches = dataPriv.access( doc, fix ) - 1;

                    if ( !attaches ) {
                        doc.removeEventListener( orig, handler, true );
                        dataPriv.remove( doc, fix );

                    } else {
                        dataPriv.access( doc, fix, attaches );
                    }
                }
            };
        } );
    }
    var location = window.location;

    var nonce = { guid: Date.now() };

    var rquery = ( /\?/ );



// Cross-browser xml parsing
    jQuery.parseXML = function( data ) {
        var xml, parserErrorElem;
        if ( !data || typeof data !== "string" ) {
            return null;
        }

        // Support: IE 9 - 11 only
        // IE throws on parseFromString with invalid input.
        try {
            xml = ( new window.DOMParser() ).parseFromString( data, "text/xml" );
        } catch ( e ) {}

        parserErrorElem = xml && xml.getElementsByTagName( "parsererror" )[ 0 ];
        if ( !xml || parserErrorElem ) {
            jQuery.error( "Invalid XML: " + (
                parserErrorElem ?
                    jQuery.map( parserErrorElem.childNodes, function( el ) {
                        return el.textContent;
                    } ).join( "\n" ) :
                    data
            ) );
        }
        return xml;
    };


    var
        rbracket = /\[\]$/,
        rCRLF = /\r?\n/g,
        rsubmitterTypes = /^(?:submit|button|image|reset|file)$/i,
        rsubmittable = /^(?:input|select|textarea|keygen)/i;

    function buildParams( prefix, obj, traditional, add ) {
        var name;

        if ( Array.isArray( obj ) ) {

            // Serialize array item.
            jQuery.each( obj, function( i, v ) {
                if ( traditional || rbracket.test( prefix ) ) {

                    // Treat each array item as a scalar.
                    add( prefix, v );

                } else {

                    // Item is non-scalar (array or object), encode its numeric index.
                    buildParams(
                        prefix + "[" + ( typeof v === "object" && v != null ? i : "" ) + "]",
                        v,
                        traditional,
                        add
                    );
                }
            } );

        } else if ( !traditional && toType( obj ) === "object" ) {

            // Serialize object item.
            for ( name in obj ) {
                buildParams( prefix + "[" + name + "]", obj[ name ], traditional, add );
            }

        } else {

            // Serialize scalar item.
            add( prefix, obj );
        }
    }

// Serialize an array of form elements or a set of
// key/values into a query string
    jQuery.param = function( a, traditional ) {
        var prefix,
            s = [],
            add = function( key, valueOrFunction ) {

                // If value is a function, invoke it and use its return value
                var value = isFunction( valueOrFunction ) ?
                    valueOrFunction() :
                    valueOrFunction;

                s[ s.length ] = encodeURIComponent( key ) + "=" +
                    encodeURIComponent( value == null ? "" : value );
            };

        if ( a == null ) {
            return "";
        }

        // If an array was passed in, assume that it is an array of form elements.
        if ( Array.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) {

            // Serialize the form elements
            jQuery.each( a, function() {
                add( this.name, this.value );
            } );

        } else {

            // If traditional, encode the "old" way (the way 1.3.2 or older
            // did it), otherwise encode params recursively.
            for ( prefix in a ) {
                buildParams( prefix, a[ prefix ], traditional, add );
            }
        }

        // Return the resulting serialization
        return s.join( "&" );
    };

    jQuery.fn.extend( {
        serialize: function() {
            return jQuery.param( this.serializeArray() );
        },
        serializeArray: function() {
            return this.map( function() {

                // Can add propHook for "elements" to filter or add form elements
                var elements = jQuery.prop( this, "elements" );
                return elements ? jQuery.makeArray( elements ) : this;
            } ).filter( function() {
                var type = this.type;

                // Use .is( ":disabled" ) so that fieldset[disabled] works
                return this.name && !jQuery( this ).is( ":disabled" ) &&
                    rsubmittable.test( this.nodeName ) && !rsubmitterTypes.test( type ) &&
                    ( this.checked || !rcheckableType.test( type ) );
            } ).map( function( _i, elem ) {
                var val = jQuery( this ).val();

                if ( val == null ) {
                    return null;
                }

                if ( Array.isArray( val ) ) {
                    return jQuery.map( val, function( val ) {
                        return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
                    } );
                }

                return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
            } ).get();
        }
    } );


    var
        r20 = /%20/g,
        rhash = /#.*$/,
        rantiCache = /([?&])_=[^&]*/,
        rheaders = /^(.*?):[ \t]*([^\r\n]*)$/mg,

        // #7653, #8125, #8152: local protocol detection
        rlocalProtocol = /^(?:about|app|app-storage|.+-extension|file|res|widget):$/,
        rnoContent = /^(?:GET|HEAD)$/,
        rprotocol = /^\/\//,

        /* Prefilters
	 * 1) They are useful to introduce custom dataTypes (see ajax/jsonp.js for an example)
	 * 2) These are called:
	 *    - BEFORE asking for a transport
	 *    - AFTER param serialization (s.data is a string if s.processData is true)
	 * 3) key is the dataType
	 * 4) the catchall symbol "*" can be used
	 * 5) execution will start with transport dataType and THEN continue down to "*" if needed
	 */
        prefilters = {},

        /* Transports bindings
	 * 1) key is the dataType
	 * 2) the catchall symbol "*" can be used
	 * 3) selection will start with transport dataType and THEN go to "*" if needed
	 */
        transports = {},

        // Avoid comment-prolog char sequence (#10098); must appease lint and evade compression
        allTypes = "*/".concat( "*" ),

        // Anchor tag for parsing the document origin
        originAnchor = document.createElement( "a" );

    originAnchor.href = location.href;

// Base "constructor" for jQuery.ajaxPrefilter and jQuery.ajaxTransport
    function addToPrefiltersOrTransports( structure ) {

        // dataTypeExpression is optional and defaults to "*"
        return function( dataTypeExpression, func ) {

            if ( typeof dataTypeExpression !== "string" ) {
                func = dataTypeExpression;
                dataTypeExpression = "*";
            }

            var dataType,
                i = 0,
                dataTypes = dataTypeExpression.toLowerCase().match( rnothtmlwhite ) || [];

            if ( isFunction( func ) ) {

                // For each dataType in the dataTypeExpression
                while ( ( dataType = dataTypes[ i++ ] ) ) {

                    // Prepend if requested
                    if ( dataType[ 0 ] === "+" ) {
                        dataType = dataType.slice( 1 ) || "*";
                        ( structure[ dataType ] = structure[ dataType ] || [] ).unshift( func );

                        // Otherwise append
                    } else {
                        ( structure[ dataType ] = structure[ dataType ] || [] ).push( func );
                    }
                }
            }
        };
    }

// Base inspection function for prefilters and transports
    function inspectPrefiltersOrTransports( structure, options, originalOptions, jqXHR ) {

        var inspected = {},
            seekingTransport = ( structure === transports );

        function inspect( dataType ) {
            var selected;
            inspected[ dataType ] = true;
            jQuery.each( structure[ dataType ] || [], function( _, prefilterOrFactory ) {
                var dataTypeOrTransport = prefilterOrFactory( options, originalOptions, jqXHR );
                if ( typeof dataTypeOrTransport === "string" &&
                    !seekingTransport && !inspected[ dataTypeOrTransport ] ) {

                    options.dataTypes.unshift( dataTypeOrTransport );
                    inspect( dataTypeOrTransport );
                    return false;
                } else if ( seekingTransport ) {
                    return !( selected = dataTypeOrTransport );
                }
            } );
            return selected;
        }

        return inspect( options.dataTypes[ 0 ] ) || !inspected[ "*" ] && inspect( "*" );
    }

// A special extend for ajax options
// that takes "flat" options (not to be deep extended)
// Fixes #9887
    function ajaxExtend( target, src ) {
        var key, deep,
            flatOptions = jQuery.ajaxSettings.flatOptions || {};

        for ( key in src ) {
            if ( src[ key ] !== undefined ) {
                ( flatOptions[ key ] ? target : ( deep || ( deep = {} ) ) )[ key ] = src[ key ];
            }
        }
        if ( deep ) {
            jQuery.extend( true, target, deep );
        }

        return target;
    }

    /* Handles responses to an ajax request:
 * - finds the right dataType (mediates between content-type and expected dataType)
 * - returns the corresponding response
 */
    function ajaxHandleResponses( s, jqXHR, responses ) {

        var ct, type, finalDataType, firstDataType,
            contents = s.contents,
            dataTypes = s.dataTypes;

        // Remove auto dataType and get content-type in the process
        while ( dataTypes[ 0 ] === "*" ) {
            dataTypes.shift();
            if ( ct === undefined ) {
                ct = s.mimeType || jqXHR.getResponseHeader( "Content-Type" );
            }
        }

        // Check if we're dealing with a known content-type
        if ( ct ) {
            for ( type in contents ) {
                if ( contents[ type ] && contents[ type ].test( ct ) ) {
                    dataTypes.unshift( type );
                    break;
                }
            }
        }

        // Check to see if we have a response for the expected dataType
        if ( dataTypes[ 0 ] in responses ) {
            finalDataType = dataTypes[ 0 ];
        } else {

            // Try convertible dataTypes
            for ( type in responses ) {
                if ( !dataTypes[ 0 ] || s.converters[ type + " " + dataTypes[ 0 ] ] ) {
                    finalDataType = type;
                    break;
                }
                if ( !firstDataType ) {
                    firstDataType = type;
                }
            }

            // Or just use first one
            finalDataType = finalDataType || firstDataType;
        }

        // If we found a dataType
        // We add the dataType to the list if needed
        // and return the corresponding response
        if ( finalDataType ) {
            if ( finalDataType !== dataTypes[ 0 ] ) {
                dataTypes.unshift( finalDataType );
            }
            return responses[ finalDataType ];
        }
    }

    /* Chain conversions given the request and the original response
 * Also sets the responseXXX fields on the jqXHR instance
 */
    function ajaxConvert( s, response, jqXHR, isSuccess ) {
        var conv2, current, conv, tmp, prev,
            converters = {},

            // Work with a copy of dataTypes in case we need to modify it for conversion
            dataTypes = s.dataTypes.slice();

        // Create converters map with lowercased keys
        if ( dataTypes[ 1 ] ) {
            for ( conv in s.converters ) {
                converters[ conv.toLowerCase() ] = s.converters[ conv ];
            }
        }

        current = dataTypes.shift();

        // Convert to each sequential dataType
        while ( current ) {

            if ( s.responseFields[ current ] ) {
                jqXHR[ s.responseFields[ current ] ] = response;
            }

            // Apply the dataFilter if provided
            if ( !prev && isSuccess && s.dataFilter ) {
                response = s.dataFilter( response, s.dataType );
            }

            prev = current;
            current = dataTypes.shift();

            if ( current ) {

                // There's only work to do if current dataType is non-auto
                if ( current === "*" ) {

                    current = prev;

                    // Convert response if prev dataType is non-auto and differs from current
                } else if ( prev !== "*" && prev !== current ) {

                    // Seek a direct converter
                    conv = converters[ prev + " " + current ] || converters[ "* " + current ];

                    // If none found, seek a pair
                    if ( !conv ) {
                        for ( conv2 in converters ) {

                            // If conv2 outputs current
                            tmp = conv2.split( " " );
                            if ( tmp[ 1 ] === current ) {

                                // If prev can be converted to accepted input
                                conv = converters[ prev + " " + tmp[ 0 ] ] ||
                                    converters[ "* " + tmp[ 0 ] ];
                                if ( conv ) {

                                    // Condense equivalence converters
                                    if ( conv === true ) {
                                        conv = converters[ conv2 ];

                                        // Otherwise, insert the intermediate dataType
                                    } else if ( converters[ conv2 ] !== true ) {
                                        current = tmp[ 0 ];
                                        dataTypes.unshift( tmp[ 1 ] );
                                    }
                                    break;
                                }
                            }
                        }
                    }

                    // Apply converter (if not an equivalence)
                    if ( conv !== true ) {

                        // Unless errors are allowed to bubble, catch and return them
                        if ( conv && s.throws ) {
                            response = conv( response );
                        } else {
                            try {
                                response = conv( response );
                            } catch ( e ) {
                                return {
                                    state: "parsererror",
                                    error: conv ? e : "No conversion from " + prev + " to " + current
                                };
                            }
                        }
                    }
                }
            }
        }

        return { state: "success", data: response };
    }

    jQuery.extend( {

        // Counter for holding the number of active queries
        active: 0,

        // Last-Modified header cache for next request
        lastModified: {},
        etag: {},

        ajaxSettings: {
            url: location.href,
            type: "GET",
            isLocal: rlocalProtocol.test( location.protocol ),
            global: true,
            processData: true,
            async: true,
            contentType: "application/x-www-form-urlencoded; charset=UTF-8",

            /*
		timeout: 0,
		data: null,
		dataType: null,
		username: null,
		password: null,
		cache: null,
		throws: false,
		traditional: false,
		headers: {},
		*/

            accepts: {
                "*": allTypes,
                text: "text/plain",
                html: "text/html",
                xml: "application/xml, text/xml",
                json: "application/json, text/javascript"
            },

            contents: {
                xml: /\bxml\b/,
                html: /\bhtml/,
                json: /\bjson\b/
            },

            responseFields: {
                xml: "responseXML",
                text: "responseText",
                json: "responseJSON"
            },

            // Data converters
            // Keys separate source (or catchall "*") and destination types with a single space
            converters: {

                // Convert anything to text
                "* text": String,

                // Text to html (true = no transformation)
                "text html": true,

                // Evaluate text as a json expression
                "text json": JSON.parse,

                // Parse text as xml
                "text xml": jQuery.parseXML
            },

            // For options that shouldn't be deep extended:
            // you can add your own custom options here if
            // and when you create one that shouldn't be
            // deep extended (see ajaxExtend)
            flatOptions: {
                url: true,
                context: true
            }
        },

        // Creates a full fledged settings object into target
        // with both ajaxSettings and settings fields.
        // If target is omitted, writes into ajaxSettings.
        ajaxSetup: function( target, settings ) {
            return settings ?

                // Building a settings object
                ajaxExtend( ajaxExtend( target, jQuery.ajaxSettings ), settings ) :

                // Extending ajaxSettings
                ajaxExtend( jQuery.ajaxSettings, target );
        },

        ajaxPrefilter: addToPrefiltersOrTransports( prefilters ),
        ajaxTransport: addToPrefiltersOrTransports( transports ),

        // Main method
        ajax: function( url, options ) {

            // If url is an object, simulate pre-1.5 signature
            if ( typeof url === "object" ) {
                options = url;
                url = undefined;
            }

            // Force options to be an object
            options = options || {};

            var transport,

                // URL without anti-cache param
                cacheURL,

                // Response headers
                responseHeadersString,
                responseHeaders,

                // timeout handle
                timeoutTimer,

                // Url cleanup var
                urlAnchor,

                // Request state (becomes false upon send and true upon completion)
                completed,

                // To know if global events are to be dispatched
                fireGlobals,

                // Loop variable
                i,

                // uncached part of the url
                uncached,

                // Create the final options object
                s = jQuery.ajaxSetup( {}, options ),

                // Callbacks context
                callbackContext = s.context || s,

                // Context for global events is callbackContext if it is a DOM node or jQuery collection
                globalEventContext = s.context &&
                ( callbackContext.nodeType || callbackContext.jquery ) ?
                    jQuery( callbackContext ) :
                    jQuery.event,

                // Deferreds
                deferred = jQuery.Deferred(),
                completeDeferred = jQuery.Callbacks( "once memory" ),

                // Status-dependent callbacks
                statusCode = s.statusCode || {},

                // Headers (they are sent all at once)
                requestHeaders = {},
                requestHeadersNames = {},

                // Default abort message
                strAbort = "canceled",

                // Fake xhr
                jqXHR = {
                    readyState: 0,

                    // Builds headers hashtable if needed
                    getResponseHeader: function( key ) {
                        var match;
                        if ( completed ) {
                            if ( !responseHeaders ) {
                                responseHeaders = {};
                                while ( ( match = rheaders.exec( responseHeadersString ) ) ) {
                                    responseHeaders[ match[ 1 ].toLowerCase() + " " ] =
                                        ( responseHeaders[ match[ 1 ].toLowerCase() + " " ] || [] )
                                            .concat( match[ 2 ] );
                                }
                            }
                            match = responseHeaders[ key.toLowerCase() + " " ];
                        }
                        return match == null ? null : match.join( ", " );
                    },

                    // Raw string
                    getAllResponseHeaders: function() {
                        return completed ? responseHeadersString : null;
                    },

                    // Caches the header
                    setRequestHeader: function( name, value ) {
                        if ( completed == null ) {
                            name = requestHeadersNames[ name.toLowerCase() ] =
                                requestHeadersNames[ name.toLowerCase() ] || name;
                            requestHeaders[ name ] = value;
                        }
                        return this;
                    },

                    // Overrides response content-type header
                    overrideMimeType: function( type ) {
                        if ( completed == null ) {
                            s.mimeType = type;
                        }
                        return this;
                    },

                    // Status-dependent callbacks
                    statusCode: function( map ) {
                        var code;
                        if ( map ) {
                            if ( completed ) {

                                // Execute the appropriate callbacks
                                jqXHR.always( map[ jqXHR.status ] );
                            } else {

                                // Lazy-add the new callbacks in a way that preserves old ones
                                for ( code in map ) {
                                    statusCode[ code ] = [ statusCode[ code ], map[ code ] ];
                                }
                            }
                        }
                        return this;
                    },

                    // Cancel the request
                    abort: function( statusText ) {
                        var finalText = statusText || strAbort;
                        if ( transport ) {
                            transport.abort( finalText );
                        }
                        done( 0, finalText );
                        return this;
                    }
                };

            // Attach deferreds
            deferred.promise( jqXHR );

            // Add protocol if not provided (prefilters might expect it)
            // Handle falsy url in the settings object (#10093: consistency with old signature)
            // We also use the url parameter if available
            s.url = ( ( url || s.url || location.href ) + "" )
                .replace( rprotocol, location.protocol + "//" );

            // Alias method option to type as per ticket #12004
            s.type = options.method || options.type || s.method || s.type;

            // Extract dataTypes list
            s.dataTypes = ( s.dataType || "*" ).toLowerCase().match( rnothtmlwhite ) || [ "" ];

            // A cross-domain request is in order when the origin doesn't match the current origin.
            if ( s.crossDomain == null ) {
                urlAnchor = document.createElement( "a" );

                // Support: IE <=8 - 11, Edge 12 - 15
                // IE throws exception on accessing the href property if url is malformed,
                // e.g. http://example.com:80x/
                try {
                    urlAnchor.href = s.url;

                    // Support: IE <=8 - 11 only
                    // Anchor's host property isn't correctly set when s.url is relative
                    urlAnchor.href = urlAnchor.href;
                    s.crossDomain = originAnchor.protocol + "//" + originAnchor.host !==
                        urlAnchor.protocol + "//" + urlAnchor.host;
                } catch ( e ) {

                    // If there is an error parsing the URL, assume it is crossDomain,
                    // it can be rejected by the transport if it is invalid
                    s.crossDomain = true;
                }
            }

            // Convert data if not already a string
            if ( s.data && s.processData && typeof s.data !== "string" ) {
                s.data = jQuery.param( s.data, s.traditional );
            }

            // Apply prefilters
            inspectPrefiltersOrTransports( prefilters, s, options, jqXHR );

            // If request was aborted inside a prefilter, stop there
            if ( completed ) {
                return jqXHR;
            }

            // We can fire global events as of now if asked to
            // Don't fire events if jQuery.event is undefined in an AMD-usage scenario (#15118)
            fireGlobals = jQuery.event && s.global;

            // Watch for a new set of requests
            if ( fireGlobals && jQuery.active++ === 0 ) {
                jQuery.event.trigger( "ajaxStart" );
            }

            // Uppercase the type
            s.type = s.type.toUpperCase();

            // Determine if request has content
            s.hasContent = !rnoContent.test( s.type );

            // Save the URL in case we're toying with the If-Modified-Since
            // and/or If-None-Match header later on
            // Remove hash to simplify url manipulation
            cacheURL = s.url.replace( rhash, "" );

            // More options handling for requests with no content
            if ( !s.hasContent ) {

                // Remember the hash so we can put it back
                uncached = s.url.slice( cacheURL.length );

                // If data is available and should be processed, append data to url
                if ( s.data && ( s.processData || typeof s.data === "string" ) ) {
                    cacheURL += ( rquery.test( cacheURL ) ? "&" : "?" ) + s.data;

                    // #9682: remove data so that it's not used in an eventual retry
                    delete s.data;
                }

                // Add or update anti-cache param if needed
                if ( s.cache === false ) {
                    cacheURL = cacheURL.replace( rantiCache, "$1" );
                    uncached = ( rquery.test( cacheURL ) ? "&" : "?" ) + "_=" + ( nonce.guid++ ) +
                        uncached;
                }

                // Put hash and anti-cache on the URL that will be requested (gh-1732)
                s.url = cacheURL + uncached;

                // Change '%20' to '+' if this is encoded form body content (gh-2658)
            } else if ( s.data && s.processData &&
                ( s.contentType || "" ).indexOf( "application/x-www-form-urlencoded" ) === 0 ) {
                s.data = s.data.replace( r20, "+" );
            }

            // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
            if ( s.ifModified ) {
                if ( jQuery.lastModified[ cacheURL ] ) {
                    jqXHR.setRequestHeader( "If-Modified-Since", jQuery.lastModified[ cacheURL ] );
                }
                if ( jQuery.etag[ cacheURL ] ) {
                    jqXHR.setRequestHeader( "If-None-Match", jQuery.etag[ cacheURL ] );
                }
            }

            // Set the correct header, if data is being sent
            if ( s.data && s.hasContent && s.contentType !== false || options.contentType ) {
                jqXHR.setRequestHeader( "Content-Type", s.contentType );
            }

            // Set the Accepts header for the server, depending on the dataType
            jqXHR.setRequestHeader(
                "Accept",
                s.dataTypes[ 0 ] && s.accepts[ s.dataTypes[ 0 ] ] ?
                    s.accepts[ s.dataTypes[ 0 ] ] +
                    ( s.dataTypes[ 0 ] !== "*" ? ", " + allTypes + "; q=0.01" : "" ) :
                    s.accepts[ "*" ]
            );

            // Check for headers option
            for ( i in s.headers ) {
                jqXHR.setRequestHeader( i, s.headers[ i ] );
            }

            // Allow custom headers/mimetypes and early abort
            if ( s.beforeSend &&
                ( s.beforeSend.call( callbackContext, jqXHR, s ) === false || completed ) ) {

                // Abort if not done already and return
                return jqXHR.abort();
            }

            // Aborting is no longer a cancellation
            strAbort = "abort";

            // Install callbacks on deferreds
            completeDeferred.add( s.complete );
            jqXHR.done( s.success );
            jqXHR.fail( s.error );

            // Get transport
            transport = inspectPrefiltersOrTransports( transports, s, options, jqXHR );

            // If no transport, we auto-abort
            if ( !transport ) {
                done( -1, "No Transport" );
            } else {
                jqXHR.readyState = 1;

                // Send global event
                if ( fireGlobals ) {
                    globalEventContext.trigger( "ajaxSend", [ jqXHR, s ] );
                }

                // If request was aborted inside ajaxSend, stop there
                if ( completed ) {
                    return jqXHR;
                }

                // Timeout
                if ( s.async && s.timeout > 0 ) {
                    timeoutTimer = window.setTimeout( function() {
                        jqXHR.abort( "timeout" );
                    }, s.timeout );
                }

                try {
                    completed = false;
                    transport.send( requestHeaders, done );
                } catch ( e ) {

                    // Rethrow post-completion exceptions
                    if ( completed ) {
                        throw e;
                    }

                    // Propagate others as results
                    done( -1, e );
                }
            }

            // Callback for when everything is done
            function done( status, nativeStatusText, responses, headers ) {
                var isSuccess, success, error, response, modified,
                    statusText = nativeStatusText;

                // Ignore repeat invocations
                if ( completed ) {
                    return;
                }

                completed = true;

                // Clear timeout if it exists
                if ( timeoutTimer ) {
                    window.clearTimeout( timeoutTimer );
                }

                // Dereference transport for early garbage collection
                // (no matter how long the jqXHR object will be used)
                transport = undefined;

                // Cache response headers
                responseHeadersString = headers || "";

                // Set readyState
                jqXHR.readyState = status > 0 ? 4 : 0;

                // Determine if successful
                isSuccess = status >= 200 && status < 300 || status === 304;

                // Get response data
                if ( responses ) {
                    response = ajaxHandleResponses( s, jqXHR, responses );
                }

                // Use a noop converter for missing script but not if jsonp
                if ( !isSuccess &&
                    jQuery.inArray( "script", s.dataTypes ) > -1 &&
                    jQuery.inArray( "json", s.dataTypes ) < 0 ) {
                    s.converters[ "text script" ] = function() {};
                }

                // Convert no matter what (that way responseXXX fields are always set)
                response = ajaxConvert( s, response, jqXHR, isSuccess );

                // If successful, handle type chaining
                if ( isSuccess ) {

                    // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
                    if ( s.ifModified ) {
                        modified = jqXHR.getResponseHeader( "Last-Modified" );
                        if ( modified ) {
                            jQuery.lastModified[ cacheURL ] = modified;
                        }
                        modified = jqXHR.getResponseHeader( "etag" );
                        if ( modified ) {
                            jQuery.etag[ cacheURL ] = modified;
                        }
                    }

                    // if no content
                    if ( status === 204 || s.type === "HEAD" ) {
                        statusText = "nocontent";

                        // if not modified
                    } else if ( status === 304 ) {
                        statusText = "notmodified";

                        // If we have data, let's convert it
                    } else {
                        statusText = response.state;
                        success = response.data;
                        error = response.error;
                        isSuccess = !error;
                    }
                } else {

                    // Extract error from statusText and normalize for non-aborts
                    error = statusText;
                    if ( status || !statusText ) {
                        statusText = "error";
                        if ( status < 0 ) {
                            status = 0;
                        }
                    }
                }

                // Set data for the fake xhr object
                jqXHR.status = status;
                jqXHR.statusText = ( nativeStatusText || statusText ) + "";

                // Success/Error
                if ( isSuccess ) {
                    deferred.resolveWith( callbackContext, [ success, statusText, jqXHR ] );
                } else {
                    deferred.rejectWith( callbackContext, [ jqXHR, statusText, error ] );
                }

                // Status-dependent callbacks
                jqXHR.statusCode( statusCode );
                statusCode = undefined;

                if ( fireGlobals ) {
                    globalEventContext.trigger( isSuccess ? "ajaxSuccess" : "ajaxError",
                        [ jqXHR, s, isSuccess ? success : error ] );
                }

                // Complete
                completeDeferred.fireWith( callbackContext, [ jqXHR, statusText ] );

                if ( fireGlobals ) {
                    globalEventContext.trigger( "ajaxComplete", [ jqXHR, s ] );

                    // Handle the global AJAX counter
                    if ( !( --jQuery.active ) ) {
                        jQuery.event.trigger( "ajaxStop" );
                    }
                }
            }

            return jqXHR;
        },

        getJSON: function( url, data, callback ) {
            return jQuery.get( url, data, callback, "json" );
        },

        getScript: function( url, callback ) {
            return jQuery.get( url, undefined, callback, "script" );
        }
    } );

    jQuery.each( [ "get", "post" ], function( _i, method ) {
        jQuery[ method ] = function( url, data, callback, type ) {

            // Shift arguments if data argument was omitted
            if ( isFunction( data ) ) {
                type = type || callback;
                callback = data;
                data = undefined;
            }

            // The url can be an options object (which then must have .url)
            return jQuery.ajax( jQuery.extend( {
                url: url,
                type: method,
                dataType: type,
                data: data,
                success: callback
            }, jQuery.isPlainObject( url ) && url ) );
        };
    } );

    jQuery.ajaxPrefilter( function( s ) {
        var i;
        for ( i in s.headers ) {
            if ( i.toLowerCase() === "content-type" ) {
                s.contentType = s.headers[ i ] || "";
            }
        }
    } );


    jQuery._evalUrl = function( url, options, doc ) {
        return jQuery.ajax( {
            url: url,

            // Make this explicit, since user can override this through ajaxSetup (#11264)
            type: "GET",
            dataType: "script",
            cache: true,
            async: false,
            global: false,

            // Only evaluate the response if it is successful (gh-4126)
            // dataFilter is not invoked for failure responses, so using it instead
            // of the default converter is kludgy but it works.
            converters: {
                "text script": function() {}
            },
            dataFilter: function( response ) {
                jQuery.globalEval( response, options, doc );
            }
        } );
    };


    jQuery.fn.extend( {
        wrapAll: function( html ) {
            var wrap;

            if ( this[ 0 ] ) {
                if ( isFunction( html ) ) {
                    html = html.call( this[ 0 ] );
                }

                // The elements to wrap the target around
                wrap = jQuery( html, this[ 0 ].ownerDocument ).eq( 0 ).clone( true );

                if ( this[ 0 ].parentNode ) {
                    wrap.insertBefore( this[ 0 ] );
                }

                wrap.map( function() {
                    var elem = this;

                    while ( elem.firstElementChild ) {
                        elem = elem.firstElementChild;
                    }

                    return elem;
                } ).append( this );
            }

            return this;
        },

        wrapInner: function( html ) {
            if ( isFunction( html ) ) {
                return this.each( function( i ) {
                    jQuery( this ).wrapInner( html.call( this, i ) );
                } );
            }

            return this.each( function() {
                var self = jQuery( this ),
                    contents = self.contents();

                if ( contents.length ) {
                    contents.wrapAll( html );

                } else {
                    self.append( html );
                }
            } );
        },

        wrap: function( html ) {
            var htmlIsFunction = isFunction( html );

            return this.each( function( i ) {
                jQuery( this ).wrapAll( htmlIsFunction ? html.call( this, i ) : html );
            } );
        },

        unwrap: function( selector ) {
            this.parent( selector ).not( "body" ).each( function() {
                jQuery( this ).replaceWith( this.childNodes );
            } );
            return this;
        }
    } );


    jQuery.expr.pseudos.hidden = function( elem ) {
        return !jQuery.expr.pseudos.visible( elem );
    };
    jQuery.expr.pseudos.visible = function( elem ) {
        return !!( elem.offsetWidth || elem.offsetHeight || elem.getClientRects().length );
    };




    jQuery.ajaxSettings.xhr = function() {
        try {
            return new window.XMLHttpRequest();
        } catch ( e ) {}
    };

    var xhrSuccessStatus = {

            // File protocol always yields status code 0, assume 200
            0: 200,

            // Support: IE <=9 only
            // #1450: sometimes IE returns 1223 when it should be 204
            1223: 204
        },
        xhrSupported = jQuery.ajaxSettings.xhr();

    support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported );
    support.ajax = xhrSupported = !!xhrSupported;

    jQuery.ajaxTransport( function( options ) {
        var callback, errorCallback;

        // Cross domain only allowed if supported through XMLHttpRequest
        if ( support.cors || xhrSupported && !options.crossDomain ) {
            return {
                send: function( headers, complete ) {
                    var i,
                        xhr = options.xhr();

                    xhr.open(
                        options.type,
                        options.url,
                        options.async,
                        options.username,
                        options.password
                    );

                    // Apply custom fields if provided
                    if ( options.xhrFields ) {
                        for ( i in options.xhrFields ) {
                            xhr[ i ] = options.xhrFields[ i ];
                        }
                    }

                    // Override mime type if needed
                    if ( options.mimeType && xhr.overrideMimeType ) {
                        xhr.overrideMimeType( options.mimeType );
                    }

                    // X-Requested-With header
                    // For cross-domain requests, seeing as conditions for a preflight are
                    // akin to a jigsaw puzzle, we simply never set it to be sure.
                    // (it can always be set on a per-request basis or even using ajaxSetup)
                    // For same-domain requests, won't change header if already provided.
                    if ( !options.crossDomain && !headers[ "X-Requested-With" ] ) {
                        headers[ "X-Requested-With" ] = "XMLHttpRequest";
                    }

                    // Set headers
                    for ( i in headers ) {
                        xhr.setRequestHeader( i, headers[ i ] );
                    }

                    // Callback
                    callback = function( type ) {
                        return function() {
                            if ( callback ) {
                                callback = errorCallback = xhr.onload =
                                    xhr.onerror = xhr.onabort = xhr.ontimeout =
                                        xhr.onreadystatechange = null;

                                if ( type === "abort" ) {
                                    xhr.abort();
                                } else if ( type === "error" ) {

                                    // Support: IE <=9 only
                                    // On a manual native abort, IE9 throws
                                    // errors on any property access that is not readyState
                                    if ( typeof xhr.status !== "number" ) {
                                        complete( 0, "error" );
                                    } else {
                                        complete(

                                            // File: protocol always yields status 0; see #8605, #14207
                                            xhr.status,
                                            xhr.statusText
                                        );
                                    }
                                } else {
                                    complete(
                                        xhrSuccessStatus[ xhr.status ] || xhr.status,
                                        xhr.statusText,

                                        // Support: IE <=9 only
                                        // IE9 has no XHR2 but throws on binary (trac-11426)
                                        // For XHR2 non-text, let the caller handle it (gh-2498)
                                        ( xhr.responseType || "text" ) !== "text"  ||
                                        typeof xhr.responseText !== "string" ?
                                            { binary: xhr.response } :
                                            { text: xhr.responseText },
                                        xhr.getAllResponseHeaders()
                                    );
                                }
                            }
                        };
                    };

                    // Listen to events
                    xhr.onload = callback();
                    errorCallback = xhr.onerror = xhr.ontimeout = callback( "error" );

                    // Support: IE 9 only
                    // Use onreadystatechange to replace onabort
                    // to handle uncaught aborts
                    if ( xhr.onabort !== undefined ) {
                        xhr.onabort = errorCallback;
                    } else {
                        xhr.onreadystatechange = function() {

                            // Check readyState before timeout as it changes
                            if ( xhr.readyState === 4 ) {

                                // Allow onerror to be called first,
                                // but that will not handle a native abort
                                // Also, save errorCallback to a variable
                                // as xhr.onerror cannot be accessed
                                window.setTimeout( function() {
                                    if ( callback ) {
                                        errorCallback();
                                    }
                                } );
                            }
                        };
                    }

                    // Create the abort callback
                    callback = callback( "abort" );

                    try {

                        // Do send the request (this may raise an exception)
                        xhr.send( options.hasContent && options.data || null );
                    } catch ( e ) {

                        // #14683: Only rethrow if this hasn't been notified as an error yet
                        if ( callback ) {
                            throw e;
                        }
                    }
                },

                abort: function() {
                    if ( callback ) {
                        callback();
                    }
                }
            };
        }
    } );




// Prevent auto-execution of scripts when no explicit dataType was provided (See gh-2432)
    jQuery.ajaxPrefilter( function( s ) {
        if ( s.crossDomain ) {
            s.contents.script = false;
        }
    } );

// Install script dataType
    jQuery.ajaxSetup( {
        accepts: {
            script: "text/javascript, application/javascript, " +
                "application/ecmascript, application/x-ecmascript"
        },
        contents: {
            script: /\b(?:java|ecma)script\b/
        },
        converters: {
            "text script": function( text ) {
                jQuery.globalEval( text );
                return text;
            }
        }
    } );

// Handle cache's special case and crossDomain
    jQuery.ajaxPrefilter( "script", function( s ) {
        if ( s.cache === undefined ) {
            s.cache = false;
        }
        if ( s.crossDomain ) {
            s.type = "GET";
        }
    } );

// Bind script tag hack transport
    jQuery.ajaxTransport( "script", function( s ) {

        // This transport only deals with cross domain or forced-by-attrs requests
        if ( s.crossDomain || s.scriptAttrs ) {
            var script, callback;
            return {
                send: function( _, complete ) {
                    script = jQuery( "<script>" )
                        .attr( s.scriptAttrs || {} )
                        .prop( { charset: s.scriptCharset, src: s.url } )
                        .on( "load error", callback = function( evt ) {
                            script.remove();
                            callback = null;
                            if ( evt ) {
                                complete( evt.type === "error" ? 404 : 200, evt.type );
                            }
                        } );

                    // Use native DOM manipulation to avoid our domManip AJAX trickery
                    document.head.appendChild( script[ 0 ] );
                },
                abort: function() {
                    if ( callback ) {
                        callback();
                    }
                }
            };
        }
    } );




    var oldCallbacks = [],
        rjsonp = /(=)\?(?=&|$)|\?\?/;

// Default jsonp settings
    jQuery.ajaxSetup( {
        jsonp: "callback",
        jsonpCallback: function() {
            var callback = oldCallbacks.pop() || ( jQuery.expando + "_" + ( nonce.guid++ ) );
            this[ callback ] = true;
            return callback;
        }
    } );

// Detect, normalize options and install callbacks for jsonp requests
    jQuery.ajaxPrefilter( "json jsonp", function( s, originalSettings, jqXHR ) {

        var callbackName, overwritten, responseContainer,
            jsonProp = s.jsonp !== false && ( rjsonp.test( s.url ) ?
                    "url" :
                    typeof s.data === "string" &&
                    ( s.contentType || "" )
                        .indexOf( "application/x-www-form-urlencoded" ) === 0 &&
                    rjsonp.test( s.data ) && "data"
            );

        // Handle iff the expected data type is "jsonp" or we have a parameter to set
        if ( jsonProp || s.dataTypes[ 0 ] === "jsonp" ) {

            // Get callback name, remembering preexisting value associated with it
            callbackName = s.jsonpCallback = isFunction( s.jsonpCallback ) ?
                s.jsonpCallback() :
                s.jsonpCallback;

            // Insert callback into url or form data
            if ( jsonProp ) {
                s[ jsonProp ] = s[ jsonProp ].replace( rjsonp, "$1" + callbackName );
            } else if ( s.jsonp !== false ) {
                s.url += ( rquery.test( s.url ) ? "&" : "?" ) + s.jsonp + "=" + callbackName;
            }

            // Use data converter to retrieve json after script execution
            s.converters[ "script json" ] = function() {
                if ( !responseContainer ) {
                    jQuery.error( callbackName + " was not called" );
                }
                return responseContainer[ 0 ];
            };

            // Force json dataType
            s.dataTypes[ 0 ] = "json";

            // Install callback
            overwritten = window[ callbackName ];
            window[ callbackName ] = function() {
                responseContainer = arguments;
            };

            // Clean-up function (fires after converters)
            jqXHR.always( function() {

                // If previous value didn't exist - remove it
                if ( overwritten === undefined ) {
                    jQuery( window ).removeProp( callbackName );

                    // Otherwise restore preexisting value
                } else {
                    window[ callbackName ] = overwritten;
                }

                // Save back as free
                if ( s[ callbackName ] ) {

                    // Make sure that re-using the options doesn't screw things around
                    s.jsonpCallback = originalSettings.jsonpCallback;

                    // Save the callback name for future use
                    oldCallbacks.push( callbackName );
                }

                // Call if it was a function and we have a response
                if ( responseContainer && isFunction( overwritten ) ) {
                    overwritten( responseContainer[ 0 ] );
                }

                responseContainer = overwritten = undefined;
            } );

            // Delegate to script
            return "script";
        }
    } );




// Support: Safari 8 only
// In Safari 8 documents created via document.implementation.createHTMLDocument
// collapse sibling forms: the second one becomes a child of the first one.
// Because of that, this security measure has to be disabled in Safari 8.
// https://bugs.webkit.org/show_bug.cgi?id=137337
    support.createHTMLDocument = ( function() {
        var body = document.implementation.createHTMLDocument( "" ).body;
        body.innerHTML = "<form></form><form></form>";
        return body.childNodes.length === 2;
    } )();


// Argument "data" should be string of html
// context (optional): If specified, the fragment will be created in this context,
// defaults to document
// keepScripts (optional): If true, will include scripts passed in the html string
    jQuery.parseHTML = function( data, context, keepScripts ) {
        if ( typeof data !== "string" ) {
            return [];
        }
        if ( typeof context === "boolean" ) {
            keepScripts = context;
            context = false;
        }

        var base, parsed, scripts;

        if ( !context ) {

            // Stop scripts or inline event handlers from being executed immediately
            // by using document.implementation
            if ( support.createHTMLDocument ) {
                context = document.implementation.createHTMLDocument( "" );

                // Set the base href for the created document
                // so any parsed elements with URLs
                // are based on the document's URL (gh-2965)
                base = context.createElement( "base" );
                base.href = document.location.href;
                context.head.appendChild( base );
            } else {
                context = document;
            }
        }

        parsed = rsingleTag.exec( data );
        scripts = !keepScripts && [];

        // Single tag
        if ( parsed ) {
            return [ context.createElement( parsed[ 1 ] ) ];
        }

        parsed = buildFragment( [ data ], context, scripts );

        if ( scripts && scripts.length ) {
            jQuery( scripts ).remove();
        }

        return jQuery.merge( [], parsed.childNodes );
    };


    /**
     * Load a url into a page
     */
    jQuery.fn.load = function( url, params, callback ) {
        var selector, type, response,
            self = this,
            off = url.indexOf( " " );

        if ( off > -1 ) {
            selector = stripAndCollapse( url.slice( off ) );
            url = url.slice( 0, off );
        }

        // If it's a function
        if ( isFunction( params ) ) {

            // We assume that it's the callback
            callback = params;
            params = undefined;

            // Otherwise, build a param string
        } else if ( params && typeof params === "object" ) {
            type = "POST";
        }

        // If we have elements to modify, make the request
        if ( self.length > 0 ) {
            jQuery.ajax( {
                url: url,

                // If "type" variable is undefined, then "GET" method will be used.
                // Make value of this field explicit since
                // user can override it through ajaxSetup method
                type: type || "GET",
                dataType: "html",
                data: params
            } ).done( function( responseText ) {

                // Save response for use in complete callback
                response = arguments;

                self.html( selector ?

                    // If a selector was specified, locate the right elements in a dummy div
                    // Exclude scripts to avoid IE 'Permission Denied' errors
                    jQuery( "<div>" ).append( jQuery.parseHTML( responseText ) ).find( selector ) :

                    // Otherwise use the full result
                    responseText );

                // If the request succeeds, this function gets "data", "status", "jqXHR"
                // but they are ignored because response was set above.
                // If it fails, this function gets "jqXHR", "status", "error"
            } ).always( callback && function( jqXHR, status ) {
                self.each( function() {
                    callback.apply( this, response || [ jqXHR.responseText, status, jqXHR ] );
                } );
            } );
        }

        return this;
    };




    jQuery.expr.pseudos.animated = function( elem ) {
        return jQuery.grep( jQuery.timers, function( fn ) {
            return elem === fn.elem;
        } ).length;
    };




    jQuery.offset = {
        setOffset: function( elem, options, i ) {
            var curPosition, curLeft, curCSSTop, curTop, curOffset, curCSSLeft, calculatePosition,
                position = jQuery.css( elem, "position" ),
                curElem = jQuery( elem ),
                props = {};

            // Set position first, in-case top/left are set even on static elem
            if ( position === "static" ) {
                elem.style.position = "relative";
            }

            curOffset = curElem.offset();
            curCSSTop = jQuery.css( elem, "top" );
            curCSSLeft = jQuery.css( elem, "left" );
            calculatePosition = ( position === "absolute" || position === "fixed" ) &&
                ( curCSSTop + curCSSLeft ).indexOf( "auto" ) > -1;

            // Need to be able to calculate position if either
            // top or left is auto and position is either absolute or fixed
            if ( calculatePosition ) {
                curPosition = curElem.position();
                curTop = curPosition.top;
                curLeft = curPosition.left;

            } else {
                curTop = parseFloat( curCSSTop ) || 0;
                curLeft = parseFloat( curCSSLeft ) || 0;
            }

            if ( isFunction( options ) ) {

                // Use jQuery.extend here to allow modification of coordinates argument (gh-1848)
                options = options.call( elem, i, jQuery.extend( {}, curOffset ) );
            }

            if ( options.top != null ) {
                props.top = ( options.top - curOffset.top ) + curTop;
            }
            if ( options.left != null ) {
                props.left = ( options.left - curOffset.left ) + curLeft;
            }

            if ( "using" in options ) {
                options.using.call( elem, props );

            } else {
                curElem.css( props );
            }
        }
    };

    jQuery.fn.extend( {

        // offset() relates an element's border box to the document origin
        offset: function( options ) {

            // Preserve chaining for setter
            if ( arguments.length ) {
                return options === undefined ?
                    this :
                    this.each( function( i ) {
                        jQuery.offset.setOffset( this, options, i );
                    } );
            }

            var rect, win,
                elem = this[ 0 ];

            if ( !elem ) {
                return;
            }

            // Return zeros for disconnected and hidden (display: none) elements (gh-2310)
            // Support: IE <=11 only
            // Running getBoundingClientRect on a
            // disconnected node in IE throws an error
            if ( !elem.getClientRects().length ) {
                return { top: 0, left: 0 };
            }

            // Get document-relative position by adding viewport scroll to viewport-relative gBCR
            rect = elem.getBoundingClientRect();
            win = elem.ownerDocument.defaultView;
            return {
                top: rect.top + win.pageYOffset,
                left: rect.left + win.pageXOffset
            };
        },

        // position() relates an element's margin box to its offset parent's padding box
        // This corresponds to the behavior of CSS absolute positioning
        position: function() {
            if ( !this[ 0 ] ) {
                return;
            }

            var offsetParent, offset, doc,
                elem = this[ 0 ],
                parentOffset = { top: 0, left: 0 };

            // position:fixed elements are offset from the viewport, which itself always has zero offset
            if ( jQuery.css( elem, "position" ) === "fixed" ) {

                // Assume position:fixed implies availability of getBoundingClientRect
                offset = elem.getBoundingClientRect();

            } else {
                offset = this.offset();

                // Account for the *real* offset parent, which can be the document or its root element
                // when a statically positioned element is identified
                doc = elem.ownerDocument;
                offsetParent = elem.offsetParent || doc.documentElement;
                while ( offsetParent &&
                ( offsetParent === doc.body || offsetParent === doc.documentElement ) &&
                jQuery.css( offsetParent, "position" ) === "static" ) {

                    offsetParent = offsetParent.parentNode;
                }
                if ( offsetParent && offsetParent !== elem && offsetParent.nodeType === 1 ) {

                    // Incorporate borders into its offset, since they are outside its content origin
                    parentOffset = jQuery( offsetParent ).offset();
                    parentOffset.top += jQuery.css( offsetParent, "borderTopWidth", true );
                    parentOffset.left += jQuery.css( offsetParent, "borderLeftWidth", true );
                }
            }

            // Subtract parent offsets and element margins
            return {
                top: offset.top - parentOffset.top - jQuery.css( elem, "marginTop", true ),
                left: offset.left - parentOffset.left - jQuery.css( elem, "marginLeft", true )
            };
        },

        // This method will return documentElement in the following cases:
        // 1) For the element inside the iframe without offsetParent, this method will return
        //    documentElement of the parent window
        // 2) For the hidden or detached element
        // 3) For body or html element, i.e. in case of the html node - it will return itself
        //
        // but those exceptions were never presented as a real life use-cases
        // and might be considered as more preferable results.
        //
        // This logic, however, is not guaranteed and can change at any point in the future
        offsetParent: function() {
            return this.map( function() {
                var offsetParent = this.offsetParent;

                while ( offsetParent && jQuery.css( offsetParent, "position" ) === "static" ) {
                    offsetParent = offsetParent.offsetParent;
                }

                return offsetParent || documentElement;
            } );
        }
    } );

// Create scrollLeft and scrollTop methods
    jQuery.each( { scrollLeft: "pageXOffset", scrollTop: "pageYOffset" }, function( method, prop ) {
        var top = "pageYOffset" === prop;

        jQuery.fn[ method ] = function( val ) {
            return access( this, function( elem, method, val ) {

                // Coalesce documents and windows
                var win;
                if ( isWindow( elem ) ) {
                    win = elem;
                } else if ( elem.nodeType === 9 ) {
                    win = elem.defaultView;
                }

                if ( val === undefined ) {
                    return win ? win[ prop ] : elem[ method ];
                }

                if ( win ) {
                    win.scrollTo(
                        !top ? val : win.pageXOffset,
                        top ? val : win.pageYOffset
                    );

                } else {
                    elem[ method ] = val;
                }
            }, method, val, arguments.length );
        };
    } );

// Support: Safari <=7 - 9.1, Chrome <=37 - 49
// Add the top/left cssHooks using jQuery.fn.position
// Webkit bug: https://bugs.webkit.org/show_bug.cgi?id=29084
// Blink bug: https://bugs.chromium.org/p/chromium/issues/detail?id=589347
// getComputedStyle returns percent when specified for top/left/bottom/right;
// rather than make the css module depend on the offset module, just check for it here
    jQuery.each( [ "top", "left" ], function( _i, prop ) {
        jQuery.cssHooks[ prop ] = addGetHookIf( support.pixelPosition,
            function( elem, computed ) {
                if ( computed ) {
                    computed = curCSS( elem, prop );

                    // If curCSS returns percentage, fallback to offset
                    return rnumnonpx.test( computed ) ?
                        jQuery( elem ).position()[ prop ] + "px" :
                        computed;
                }
            }
        );
    } );


// Create innerHeight, innerWidth, height, width, outerHeight and outerWidth methods
    jQuery.each( { Height: "height", Width: "width" }, function( name, type ) {
        jQuery.each( {
            padding: "inner" + name,
            content: type,
            "": "outer" + name
        }, function( defaultExtra, funcName ) {

            // Margin is only for outerHeight, outerWidth
            jQuery.fn[ funcName ] = function( margin, value ) {
                var chainable = arguments.length && ( defaultExtra || typeof margin !== "boolean" ),
                    extra = defaultExtra || ( margin === true || value === true ? "margin" : "border" );

                return access( this, function( elem, type, value ) {
                    var doc;

                    if ( isWindow( elem ) ) {

                        // $( window ).outerWidth/Height return w/h including scrollbars (gh-1729)
                        return funcName.indexOf( "outer" ) === 0 ?
                            elem[ "inner" + name ] :
                            elem.document.documentElement[ "client" + name ];
                    }

                    // Get document width or height
                    if ( elem.nodeType === 9 ) {
                        doc = elem.documentElement;

                        // Either scroll[Width/Height] or offset[Width/Height] or client[Width/Height],
                        // whichever is greatest
                        return Math.max(
                            elem.body[ "scroll" + name ], doc[ "scroll" + name ],
                            elem.body[ "offset" + name ], doc[ "offset" + name ],
                            doc[ "client" + name ]
                        );
                    }

                    return value === undefined ?

                        // Get width or height on the element, requesting but not forcing parseFloat
                        jQuery.css( elem, type, extra ) :

                        // Set width or height on the element
                        jQuery.style( elem, type, value, extra );
                }, type, chainable ? margin : undefined, chainable );
            };
        } );
    } );


    jQuery.each( [
        "ajaxStart",
        "ajaxStop",
        "ajaxComplete",
        "ajaxError",
        "ajaxSuccess",
        "ajaxSend"
    ], function( _i, type ) {
        jQuery.fn[ type ] = function( fn ) {
            return this.on( type, fn );
        };
    } );




    jQuery.fn.extend( {

        bind: function( types, data, fn ) {
            return this.on( types, null, data, fn );
        },
        unbind: function( types, fn ) {
            return this.off( types, null, fn );
        },

        delegate: function( selector, types, data, fn ) {
            return this.on( types, selector, data, fn );
        },
        undelegate: function( selector, types, fn ) {

            // ( namespace ) or ( selector, types [, fn] )
            return arguments.length === 1 ?
                this.off( selector, "**" ) :
                this.off( types, selector || "**", fn );
        },

        hover: function( fnOver, fnOut ) {
            return this.mouseenter( fnOver ).mouseleave( fnOut || fnOver );
        }
    } );

    jQuery.each(
        ( "blur focus focusin focusout resize scroll click dblclick " +
            "mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " +
            "change select submit keydown keypress keyup contextmenu" ).split( " " ),
        function( _i, name ) {

            // Handle event binding
            jQuery.fn[ name ] = function( data, fn ) {
                return arguments.length > 0 ?
                    this.on( name, null, data, fn ) :
                    this.trigger( name );
            };
        }
    );




// Support: Android <=4.0 only
// Make sure we trim BOM and NBSP
    var rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g;

// Bind a function to a context, optionally partially applying any
// arguments.
// jQuery.proxy is deprecated to promote standards (specifically Function#bind)
// However, it is not slated for removal any time soon
    jQuery.proxy = function( fn, context ) {
        var tmp, args, proxy;

        if ( typeof context === "string" ) {
            tmp = fn[ context ];
            context = fn;
            fn = tmp;
        }

        // Quick check to determine if target is callable, in the spec
        // this throws a TypeError, but we will just return undefined.
        if ( !isFunction( fn ) ) {
            return undefined;
        }

        // Simulated bind
        args = slice.call( arguments, 2 );
        proxy = function() {
            return fn.apply( context || this, args.concat( slice.call( arguments ) ) );
        };

        // Set the guid of unique handler to the same of original handler, so it can be removed
        proxy.guid = fn.guid = fn.guid || jQuery.guid++;

        return proxy;
    };

    jQuery.holdReady = function( hold ) {
        if ( hold ) {
            jQuery.readyWait++;
        } else {
            jQuery.ready( true );
        }
    };
    jQuery.isArray = Array.isArray;
    jQuery.parseJSON = JSON.parse;
    jQuery.nodeName = nodeName;
    jQuery.isFunction = isFunction;
    jQuery.isWindow = isWindow;
    jQuery.camelCase = camelCase;
    jQuery.type = toType;

    jQuery.now = Date.now;

    jQuery.isNumeric = function( obj ) {

        // As of jQuery 3.0, isNumeric is limited to
        // strings and numbers (primitives or objects)
        // that can be coerced to finite numbers (gh-2662)
        var type = jQuery.type( obj );
        return ( type === "number" || type === "string" ) &&

            // parseFloat NaNs numeric-cast false positives ("")
            // ...but misinterprets leading-number strings, particularly hex literals ("0x...")
            // subtraction forces infinities to NaN
            !isNaN( obj - parseFloat( obj ) );
    };

    jQuery.trim = function( text ) {
        return text == null ?
            "" :
            ( text + "" ).replace( rtrim, "" );
    };



// Register as a named AMD module, since jQuery can be concatenated with other
// files that may use define, but not via a proper concatenation script that
// understands anonymous AMD modules. A named AMD is safest and most robust
// way to register. Lowercase jquery is used because AMD module names are
// derived from file names, and jQuery is normally delivered in a lowercase
// file name. Do this after creating the global so that if an AMD module wants
// to call noConflict to hide this version of jQuery, it will work.

// Note that for maximum portability, libraries that are not jQuery should
// declare themselves as anonymous modules, and avoid setting a global if an
// AMD loader is present. jQuery is a special case. For more information, see
// https://github.com/jrburke/requirejs/wiki/Updating-existing-libraries#wiki-anon

    if ( typeof define === "function" && define.amd ) {
        define( "jquery", [], function() {
            return jQuery;
        } );
    }




    var

        // Map over jQuery in case of overwrite
        _jQuery = window.jQuery,

        // Map over the $ in case of overwrite
        _$ = window.$;

    jQuery.noConflict = function( deep ) {
        if ( window.$ === jQuery ) {
            window.$ = _$;
        }

        if ( deep && window.jQuery === jQuery ) {
            window.jQuery = _jQuery;
        }

        return jQuery;
    };

// Expose jQuery and $ identifiers, even in AMD
// (#7102#comment:10, https://github.com/jquery/jquery/pull/557)
// and CommonJS for browser emulators (#13566)
    if ( typeof noGlobal === "undefined" ) {
        window.jQuery = window.$ = jQuery;
    }




    return jQuery;
} );