window.onload = function () {
  var tree = document.getElementById("tree");
  var lists = [ tree ];
  for (var i = 0; i < tree.getElementsByTagName("ul").length; i++)
	lists[lists.length] = tree.getElementsByTagName("ul")[i];
	  for (var i = 0; i < lists.length; i++) {
		var item = lists[i].lastChild;     	 
		while (!item.tagName || item.tagName.toLowerCase() != "li")
			item = item.previousSibling;
			item.className += " last";
	  }
};
//Below uncomment to add treeimages with expand, collapse 
//initiateIt();