gets the object of the currently displayed event
| id | string | the event's id | 
| HTMLElement | **the event's HTML object** -  if the event is currently displayed in the scheduler.  **'null'** - if the event isn't displayed in the scheduler at the moment of calling the method.  | 
var eventId = scheduler.addEvent({
    start_date: "16-05-2013 09:00",
    end_date:   "16-05-2013 12:00",
    text:   "Meeting"
});
var eventObj = scheduler.getRenderedEvent(eventId);
//-> <div event_id="123649234723" ...>09:00 Meeting</div>
Available from version 3.5