public function getStores($group)
 {
     $stores = parent::getStores($group);
     $role = Mage::getSingleton('aitpermissions/role');
     if ($role->isPermissionsEnabled()) {
         foreach ($stores as $storeId => $store) {
             if (!in_array($storeId, $role->getAllowedStoreviewIds())) {
                 unset($stores[$storeId]);
             }
         }
     }
     return $stores;
 }