function delete_many()
 {
     global $__in, $__out;
     $permission = new permission();
     if ($permission->delete_many($__in['arr_ids'])) {
         return dispatcher::redirect(array("action" => "getall"), "deleted_successfully");
     } else {
         // else if the array of ids are not deleted
         return dispatcher::redirect(array("action" => "getall"));
     }
     // end if the array of ids are deleted
 }