public static function isChildIndustrial($IndustrialId, $ChildIndustrialId)
 {
     $ischild = false;
     $obj_retResult = DAL_manageIndustrial::getIndustrialListByIndustrialId($ChildIndustrialId);
     //get child node
     if ($obj_retResult->type == 1) {
         $arr_IndustrialList = $obj_retResult->data;
         $obj_Industrial = $arr_IndustrialList[0];
         $arrParentIds = explode(",", $obj_Industrial->Url);
         foreach ($arrParentIds as $IndustrialParentId) {
             if ($IndustrialParentId == $IndustrialId) {
                 $ischild = true;
             }
         }
     }
     return $ischild;
 }