var observerSvc = Cc["@mozilla.org/observer-service;1"]. getService(Ci.nsIObserverService); 
var observerSvc = Components.classes["@mozilla.org/observer-service;1"] .getService(Components.interfaces.nsIObserverService); 
function imipOnUnload(){    removeEventListener("messagepane-loaded", imipOnLoad, true);    removeEventListener("messagepane-unloaded", imipOnUnload, true);    var observerSvc = Cc["@mozilla.org/observer-service;1"].                      getService(Ci.nsIObserverService);    observerSvc.removeObserver(onItipItem, "onItipItemCreation");    gItipItem = null;}
5459	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/5459/6b4d8f96f4092c4d68b93256700b25be955d0946/imip-bar.js/clean/calendar/lightning/content/imip-bar.js