<public:component>
  <script type="text/javascript">
  <!--  
    function getParentElementByTagName(oElement, tagName)
    {
      var returnValue = null;
      while((oElement = oElement.parentNode) && oElement != document)
      {
        if(oElement.tagName && oElement.tagName.toUpperCase() == tagName.toUpperCase())
        {
          returnValue = oElement;
          break;
        }
      }
      return returnValue;
    }
    
    function bubbleClick()
    {
      oParent = getParentElementByTagName(this, 'LABEL');
      if(oParent)
        oParent.click();
    }
  // -->
  </script>
  <public:attach event="onclick" onevent="bubbleClick()"/>
</public:component>
