[scriptable, function, uuid(df31c120-ded6-11d1-bd85-00805f8ae3f4)]
interface nsIDOMEventListener : nsISupports


 The nsIDOMEventListener interface is a callback interface for
 listening to events in the Document Object Model.

 For more information on this interface please see 

 @status FROZEN

 This method is called whenever an event occurs of the type for which 
 the EventListener interface was registered.

 @param   evt The Event contains contextual information about the 
              event. It also contains the stopPropagation and 
              preventDefault methods which are used in determining the 
              event's flow and default action.
void handleEvent(in nsIDOMEvent event)