rem: var idx = this.mHandlerOutliner.currentIndex; 
add: var idx = this.mHandlerTree.currentIndex; 
context:   onHandlerSelected: function()  {    var idx = this.mHandlerOutliner.currentIndex;    var handlers = this.mBinding.getElementsByTagNameNS(kXBLNSURI, "handler");    var handler = handlers[idx];    this.displayHandler(handler);  },
meta: 5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5872/d38a0937d9c93a0a9d913e2ac781e4328bb8cc73/xblBindings.js/buggy/extensions/inspector/resources/content/viewers/xblBindings/xblBindings.js