add: var calendar = createCalendar(); 
context: function finishCalendarToDoUnifinder(){    calendar.removeObserver(unifinderToDoDataSourceObserver);}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/214bba8589fa346c51456d6df6c363da5d076249/unifinderToDo.js/clean/calendar/resources/content/unifinderToDo.js