rem: var tree = document.getElementById("Tree"); if (tree) { tree.database.RemoveObserver(RDF_observer); } 
add: var tree = document.getElementById("Tree"); tree.database.RemoveObserver(RDF_observer); 
context: function SearchPanelShutdown(){	var tree = document.getElementById("Tree");	if (tree)	{		tree.database.RemoveObserver(RDF_observer);	}}
meta: 5459	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5459/92255768432d56941bc6db8dcc4e84be97378a11/search-panel.js/clean/suite/common/search/search-panel.js