BIMviewer

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(function(){
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  function toggle(ev) {
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    var button = ev.target;
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    var parent = ev.target.parentElement;
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    while(parent) {
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      if (parent.tagName === 'TABLE' && parent.classList.contains('summary')) break;
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      parent = parent.parentElement;
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    }
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    if (!parent) return;
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    var tbody = parent.querySelector('tbody');
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    if (button.classList.contains('opened')) {
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      button.classList.remove('opened');
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      button.classList.add('closed');
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      tbody.style.display = 'none';
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    } else {
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      button.classList.remove('closed');
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      button.classList.add('opened');
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      tbody.style.display = 'block';
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    }
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  }
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  var buttons = document.querySelectorAll('.inherited-summary thead .toggle');
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  for (var i = 0; i < buttons.length; i++) {
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    buttons[i].addEventListener('click', toggle);
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  }
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})();
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