--- js/tree.js	2007-08-19 21:51:13.000000000 +1000
+++ js/tree.js.NEW	2008-09-25 11:23:24.000000000 +1000
@@ -25,7 +25,7 @@ if (Drupal.jsEnabled) {
 Drupal.attachTreeview = function(ul) {
   $(ul)
     .addClass("treeview")
-    .find("li[ul]").prepend("<div class='hitArea'/>").find("ul").hide().end()
+    .find("li:has(ul)").prepend("<div class='hitArea'/>").find("ul").hide().end()
     .find("div.hitArea").click(function() {
       Drupal.toggleTree(this);
     });