public function upMenuPagesPosition($menuName, $position, $positionLimit = NULL)
    {
        if (is_null($positionLimit))
        {
            $query = $this->getEntityManager()->createQuery('UPDATE FulgurioLightCMSBundle:PageMenu m SET m.position=m.position-1 WHERE m.position>=:position AND m.label=:menuName');
        }
        else
        {
            $query = $this->getEntityManager()->createQuery('UPDATE FulgurioLightCMSBundle:PageMenu m SET m.position=m.position-1 WHERE m.position>=:position AND m.position<=:positionLimit AND m.label=:menuName');
            $query->setParameter('positionLimit', $positionLimit);
        }
        $query->setParameter('menuName', $menuName);
        $query->setParameter('position', $position);
        $query->getResult();
    }