rem: return IsSpecialFolder(selectedFolder, flags); 
add: return IsSpecialFolder(selectedFolder, flags, checkAncestors); 
context: function IsSpecialFolderSelected(flags){  var selectedFolder = GetThreadPaneFolder();  return IsSpecialFolder(selectedFolder, flags);}
meta: 5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5872/d4b620f2a2a5da81f511e683b9be47a72fbba59b/threadPane.js/clean/mailnews/base/resources/content/threadPane.js