function Toggle(node) {
	// Unfold the branch if it isn't visible
	  if (node.nextSibling.style.display == 'none')	{
 		// Change the image (if there is an image)
		  if (node.childNodes.length > 0) {
			  if (node.childNodes.item(0).tagName == "IMG") {
				  node.childNodes.item(0).src = "images/minus.gif";
			  }
		  }
    	node.nextSibling.style.display = '';
	  }
	  // Collapse the branch if it IS visible
	  else {
		// Change the image (if there is an image)
		  if (node.childNodes.length > 0)	{
        if (node.childNodes.item(0).tagName == "IMG") {
   				node.childNodes.item(0).src = "images/plus.gif";
			  }
		  }
    	node.nextSibling.style.display = 'none';
	  }
  }
   function collapse(pId) {
  var node
    node=document.getElementById(pId);
    node.childNodes.item(0).src = "images/plus.gif";
    node.nextSibling.style.display = 'none';
   }