public function registerNotifications($session, $notificationId, $clientType){
		if($clientType=='android') $clientType = Gpf_Db_NotificationRegistration::TYPE_ANDROID;
		else $clientType = Gpf_Db_NotificationRegistration::TYPE_IOS;
		
		$this->loginFromSession($session);
		$notificationRegistration = new Gpf_Db_NotificationRegistration();
		$notificationRegistration->setNotificationId($notificationId);
		$notificationRegistration->setClientType($clientType);
		$notificationRegistration->setAccountUserId($this->user->getAccountUserId());
                $date = new Gpf_DateTime();
                $notificationRegistration->setRegistrationTime($date->toDateTime());
		$notificationRegistration->save();
		return new Pap_Mobile_Response(true);
	}