public static function batchDeleteGroups($batch)
 {
     global $lC_Language;
     $lC_Language->loadIniFile('zone_groups.php');
     $result = array();
     $result['namesString'] = '';
     foreach ($batch as $id) {
         if (lC_Zone_groups_Admin::hasTaxRate($id)) {
             $zData = lC_Zone_groups_Admin::get($id);
             $result['namesString'] .= $zData['geo_zone_name'] . ' (' . sprintf($lC_Language->get('total_entries'), $zData['total_entries']) . '), ';
         } else {
             lC_Zone_groups_Admin::delete($id);
         }
     }
     if (!empty($result['namesString'])) {
         $result['namesString'] = substr($result['namesString'], 0, -2);
     }
     return $result;
 }