rem: var idx = this.mPropOutliner.currentIndex; 
add: var idx = this.mPropTree.currentIndex; 
context:   onPropSelected: function()  {    var idx = this.mPropOutliner.currentIndex;    var props = this.mBinding.getElementsByTagNameNS(kXBLNSURI, "property");    var prop = props[idx];    this.displayProperty(prop);  },
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