add:  var tree = document.getElementById("Tree"); if (tree) { var rdf = Components.classes["component: if (rdf)   rdf = rdf.QueryInterface(Components.interfaces.nsIRDFService); if (rdf) { rootNode = rdf.GetResource("NC:LastSearchRoot", true); textArc = rdf.GetResource("http:  tree.database.AddObserver(RDF_observer); } } 
context: function Init(){    // Initialize the Search panel}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/550638f633322b740fdb7f934809f003343cc73a/search-panel.js/clean/xpfe/components/search/resources/search-panel.js