add: gThreadTree = document.getElementById("threadTree"); 
context: function searchOnLoad(){    initializeSearchWidgets();    initializeSearchWindowWidgets();    setupDatasource();    if (window.arguments && window.arguments[0])        selectFolder(window.arguments[0].folder);        onMore(null);    }
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/7453040ba673a4b175112415ff2092ae2319b6e2/SearchDialog.js/clean/mailnews/base/search/resources/content/SearchDialog.js