rem: if (!gDBView) return; 
context: 	doCommand: function(command)	{    // if the user invoked a key short cut then it is possible that we got here for a command which is    // really disabled. kick out if the command should be disabled.    if (!this.isCommandEnabled(command)) return;    if (!gDBView) return;		switch ( command )		{			case "cmd_selectAll":                // if in threaded mode, the view will expand all before selecting all                gDBView.doCommand(nsMsgViewCommandType.selectAll)                if (gDBView.numSelected != 1) {                    setTitleFromFolder(gDBView.msgFolder,null);                    ClearMessagePane();                }                break;		}	},
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/68b2bf0c677dd0625902cafde19d7fadf8ba3fba/mail3PaneWindowCommands.js/clean/mailnews/base/resources/content/mail3PaneWindowCommands.js