public function getUserEntityRepository() 
    {
    	if(isset($this->er['User'])) {
    		return $this->er['User'];
    	}
    	$entityRepository = $this->getEntityManager()->getRepository('Neobazaar\Entity\User');
    	$entityRepository->setServiceLocator($this->getServiceManager());
    	$this->er['User'] = $entityRepository;
    	
    	return $this->er['User'];
    }