rem: var treeChildrenNode = document.getElementById("engineKids"); return treeChildrenNode.childNodes.length; 
add: var listbox = document.getElementById("searchengines"); return listbox.getElementsByTagName("listitem").length; 
context: function getNumEngines(){  var treeChildrenNode = document.getElementById("engineKids");  return treeChildrenNode.childNodes.length;}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/a376ddc0531725ad80728692bef9c8ab8b17636c/search-panel.js/buggy/suite/common/search/search-panel.js