} else {
         if (strcmp($_POST['action'], 'login') == 0 && isset($_POST['email']) && isset($_POST['password'])) {
             $email = trim($_POST['email']);
             $password = trim($_POST['password']);
             $cdi = new ClientDaoImp($entityManager);
             $client = $cdi->getClientByEmail($email);
             if ($client == null) {
                 echo json_encode(array('flag' => 'EMAIL_NULL'));
             } else {
                 if (strcmp($client->getPassword(), md5($password)) == 0) {
                     $cl = $_SESSION['client'];
                     $cdi = new ClientDaoImp($entityManager);
                     $client = $cdi->getClientById($cl->getId());
                     if ($client != null) {
                         foreach ($client->getOrders() as $order) {
                             if (!$order->getValid()) {
                                 $order->setValid(true);
                             }
                         }
                     }
                     $entityManager->flush();
                     echo json_encode(array('flag' => 'PASSWD_OK'));
                 } else {
                     echo json_encode(array('flag' => 'PASSWD_NULL'));
                 }
             }
         } else {
             echo json_encode(array('flag', 'error: Action not found'));
         }
     }
 }