public function findPagesOfMenu($menuName, $lang = NULL)
    {
        $query = $this->getEntityManager()->createQuery('SELECT p FROM FulgurioLightCMSBundle:Page p JOIN p.menu m WHERE m.label=:menuName ORDER BY m.position');
        $query->setParameter('menuName', $menuName);
        $results = $query->getResult();
        if (!is_null($lang) && isset($results[0]) && $results[0]->getLang() != $lang)
        {
            $tmp = array();
            foreach ($results as $result)
            {
               $tmp[] = $result->getId();
            }
            $query = $this->getEntityManager()->createQuery('SELECT p FROM FulgurioLightCMSBundle:Page p WHERE p.lang=:lang AND p.source_id IN (:source_ids)');
            $query->setParameter('lang', $lang);
            $query->setParameter('source_ids', $tmp);
            $results2 = $query->getResult();
            $tmp2 = array();
            foreach ($results as $result)
            {
                foreach ($results2 as $result2)
                {
                    if ($result->getId() == $result2->getSourceId())
                    {
                        $tmp2[] = $result2;
                        break;
                    }
                }
            }
            return $tmp2;
        }
        return $results;
    }