rem: if (!this.isValidOpenEvent(aEvent)) 
add: if (!this.isValidOpenEvent(aEvent)) 
context:   treeOpen: function (aEvent)  {    if (!this.isValidOpenEvent(aEvent))         return;        var rdfNode = this.findRDFNode(aEvent.target, true);    if (rdfNode.getAttribute("container") == "true") {      if (this.openClickCount == 1)        rdfNode.setAttribute("open", rdfNode.getAttribute("open") != "true");      gSelectionTracker.clickCount = 0;      return;    }        this.open(aEvent, rdfNode);  },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/eaa6754a0a946375badf1165b3e4af3999e4b03c/bookmarksTree.js/buggy/xpfe/components/bookmarks/resources/bookmarksTree.js