add:  if (event.button != 0) return;  
context: function dayEventItemDoubleClick( eventBox, event ){   editEvent( eventBox.calendarEventDisplay.event );   if ( event )    {      event.stopPropagation();   }}
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/dbf5c85f79b575bef6b0ca4e9b6dfa24eb014d80/calendar.js/clean/calendar/resources/content/calendar.js