add:  document.getElementById("threadTree").setAttribute("focusring","true"); 
context: 	doCommand: function(command)	{		switch ( command )		{			case "cmd_selectAll":				var threadTree = GetThreadTree();				if ( threadTree )				{					//if we're threaded we need to expand everything before selecting all					if(messageView.showThreads)						ExpandOrCollapseThreads(true);					threadTree.selectAll();					if ( threadTree.selectedItems && threadTree.selectedItems.length != 1 )						ClearMessagePane();				}				break;		}	},
meta: 5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5872/7788b0c25ffbd3c635995ef385224958726aed02/mail3PaneWindowCommands.js/clean/mailnews/base/resources/content/mail3PaneWindowCommands.js