rem: tree.database.RemoveDatasource(HTTPIndex); 
add: tree.database.RemoveDataSource(HTTPIndex); 
context: function DoUnload(){	var tree = document.getElementById("tree");	if (tree)	{		tree.database.RemoveDatasource(HTTPIndex);		tree.database.RemoveObserver(RDF_observer);	    debug("Directory: removed observer\n");	}}
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/d12024c2e34986a2779d1662c9bfde420dc79183/directory.js/buggy/suite/common/directory/directory.js