rem: return GetFolderDatasource(); 
add: return GetFolderDatasource(); 
context: function GetCompositeDataSource(command){  if (command == "GetNewMessages" || command == "NewFolder" || command == "MarkAllMessagesRead")        return GetFolderDatasource();  return null;}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/9421/99b702eb3ae7c2b1f5466b0dfcf7238f9b0ca1ac/msgMail3PaneWindow.js/clean/mail/base/content/msgMail3PaneWindow.js