rem: var tree = document.getElementById("Tree"); 
add: var tree = document.getElementById("resultList"); 
context: function SearchPanelShutdown(){  var tree = document.getElementById("Tree");  tree.database.RemoveObserver(RDF_observer);}
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/e0d74dbab0591d49321454ee7cde5f57910c4047/search-panel.js/buggy/suite/common/search/search-panel.js