function findChildNode(node, name) 
    {
      var temp;
      if (node == null) 
      {
        return null;
      } 
      node = node.firstChild;
      while (node != null) 
      {
        if (node.nodeName == name) 
        {
          return node;
        }
        temp = findChildNode(node, name);
        if (temp != null) 
        {
          return temp;
        }
        node = node.nextSibling;
      }
      return null;
    }

    function toggleFolder(id, imageNode) 
    {
      var folder = document.getElementById(id);
      var l = 0;
      var vl = "images/ftv2vertline.png";
      if (imageNode != null && imageNode.nodeName != "IMG") 
      {
        imageNode = findChildNode(imageNode, "IMG");
        if (imageNode!=null) l = imageNode.src.length;
      }
      if (folder == null) 
      {
      } 
      else if (folder.style.display == "block") 
      {
        while (imageNode != null && 
               imageNode.src.substring(l-vl.length,l) == vl)
        {
          imageNode = imageNode.nextSibling;
          l = imageNode.src.length;
        }
        if (imageNode != null) 
        {
          l = imageNode.src.length;
          imageNode.nextSibling.src = "images/ftv2folderclosed.png";
          if (imageNode.src.substring(l-13,l) == "images/ftv2mnode.png")
          {
            imageNode.src = "images/ftv2pnode.png";
          }
          else if (imageNode.src.substring(l-17,l) == "images/ftv2mlastnode.png")
          {
            imageNode.src = "images/ftv2plastnode.png";
          }
        }
        folder.style.display = "none";
      } 
      else 
      {
        while (imageNode != null && 
               imageNode.src.substring(l-vl.length,l) == vl)
        {
          imageNode = imageNode.nextSibling;
          l = imageNode.src.length;
        }
        if (imageNode != null) 
        {
          l = imageNode.src.length;
          imageNode.nextSibling.src = "images/ftv2folderopen.png";
          if (imageNode.src.substring(l-13,l) == "images/ftv2pnode.png")
          {
            imageNode.src = "images/ftv2mnode.png";
          }
          else if (imageNode.src.substring(l-17,l) == "images/ftv2plastnode.png")
          {
            imageNode.src = "images/ftv2mlastnode.png";
          }
        }
        folder.style.display = "block";
      }
    }