add:  if (event.button != 0) return;  
context: function modifyToDoCommand( event ){   //open the edit todo dialog box   var ThisToDo = getToDoFromEvent( event );      if( ThisToDo )      editToDo( ThisToDo );}
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/dbf5c85f79b575bef6b0ca4e9b6dfa24eb014d80/unifinderToDo.js/clean/calendar/resources/content/unifinderToDo.js