rem: return aObject instanceof Components.interfaces.oeIICalEvent; 
add: return (aObject instanceof Components.interfaces.oeIICalEvent) && !(aObject instanceof Components.interfaces.oeIICalTodo); 
context: function isEvent ( aObject ){   return aObject instanceof Components.interfaces.oeIICalEvent;}
meta: 5459	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5459/5fe7cfea7b8cb3f51ded0b7916a60acc409aef3e/calendar.js/clean/calendar/resources/content/calendar.js