code: function(event_name, event_object) {
  
  		if (this._focused_element != event_object.target) {
  			this._setTarget(null);
  			this._focused_element = event_object.target;
  		}
  
  	}
docs: Clear old virtual focus target and set new `_focused_element`.
  @param event_name
  @param event_object