public function add(INotification $note){
		switch( $note->position ){
			case Blueprint::TOP:
				$this->top($note);
				return;

			case Blueprint::MIDDLE:
				$this->middle($note);
				return;

			case Blueprint::BOTTOM:
				$this->bottom($note);
				return;
			
			default:
				$this->middle($note);
				return;
		}
	}