rem: getCompositeCalendar().removeObserver(agendaTreeView.calendarObserver); getCompositeCalendar().removeObserver(ltnCompositeCalendarObserver); getCalendarManager().removeObserver(ltnCalendarManagerObserver); return; 
add: unloadCalendarManager(); 
context: function ltnFinish() {    var prefService = Components.classes["@mozilla.org/preferences-service;1"]                            .getService(Components.interfaces.nsIPrefService);    // Remove the pref observer    var pb2 = prefService.getBranch("");    pb2 = pb2.QueryInterface(Components.interfaces.nsIPrefBranch2);    pb2.removeObserver("calendar.", ltnPrefObserver);    getCompositeCalendar().removeObserver(agendaTreeView.calendarObserver);    getCompositeCalendar().removeObserver(ltnCompositeCalendarObserver);    getCalendarManager().removeObserver(ltnCalendarManagerObserver);    return;}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/9421/b8864004460ce22942cdc33e51e57d6af6e2fce2/messenger-overlay-sidebar.js/clean/calendar/lightning/content/messenger-overlay-sidebar.js