context: function WhichPaneHasFocus(){  var threadOutliner = GetThreadOutliner();  var searchInput = GetSearchInput();  var folderOutliner = GetFolderOutliner();  var messagePane = GetMessagePane();      if (top.document.commandDispatcher.focusedWindow == GetMessagePaneFrame())    return messagePane;	var currentNode = top.document.commandDispatcher.focusedElement;		while (currentNode) {    if (currentNode === threadOutliner ||        currentNode === searchInput ||         currentNode === folderOutliner ||        currentNode === messagePane)      return currentNode;							currentNode = currentNode.parentNode;  }		return null;}
meta: 8395	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/8395/62c329115a71e7740faee7e0c6aa22e053263db2/mail3PaneWindowCommands.js/clean/mailnews/base/resources/content/mail3PaneWindowCommands.js