add:  event.currentTarget.childNodes[0].removeAttribute( "checked" ); }  
context: function switchCalendar( event ){   dump( "\nRemoveCalendar in calendarManager.js: button is "+event.button );   if (event.button != 0)    {      return;   }         if( event.currentTarget.checked )      gCalendarWindow.calendarManager.addCalendar( event.currentTarget.calendarObject );   else      gCalendarWindow.calendarManager.removeCalendar( event.currentTarget.calendarObject );   refreshEventTree( false );   refreshToDoTree( false );      gCalendarWindow.currentView.refreshEvents();}
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/ed8071f89a080a524ee21853244bb920045b6de7/calendarManager.js/buggy/calendar/resources/content/calendarManager.js