public function getValue($keyname, $default = '')
    {
        $ret = null;
        foreach ($this->keyname as $key) {
            if ($key == $keyname) {
                $ret = isset($this->arrValue[$key]) ? $this->arrValue[$key] : $this->arrDefault[$key];
                break;
            }
        }

        if (is_array($ret)) {
            foreach ($ret as $key => $value) {
// added
              if (is_array($ret[$key])) {
                foreach ($ret[$key] as $key2 => $value2) {
                  if (SC_Utils_Ex::isBlank($ret[$key][$key2])) {
                      $ret[$key][$key2] = $default;
                  }
                }
              } else {
// added
                if (SC_Utils_Ex::isBlank($ret[$key])) {
                    $ret[$key] = $default;
                }
// added
              }
// added
            }
        } else {
            if (SC_Utils_Ex::isBlank($ret)) {
                $ret = $default;
            }
        }

        return $ret;
    }

            //届け先に選択商品がない場合
            $objProduct = new SC_Product_Ex();
            $arrAddProductInfo = $objProduct->getDetailAndProductsClass($add_product_class_id);

            $arrShipmentProducts['shipment_product_class_id'][$select_shipping_id][] = $add_product_class_id;
            $arrShipmentProducts['shipment_product_code'][$select_shipping_id][]     = $arrAddProductInfo['product_code'];
            $arrShipmentProducts['shipment_product_name'][$select_shipping_id][]     = $arrAddProductInfo['name'];
// added
            $arrShipmentProducts['shipment_classcategory_name1'][$select_shipping_id][] = $arrAddProductInfo['classcategory_name1'];
            $arrShipmentProducts['shipment_classcategory_name2'][$select_shipping_id][] = $arrAddProductInfo['classcategory_name2'];
// added
            $arrShipmentProducts['shipment_price'][$select_shipping_id][]            = $arrAddProductInfo['price02'];
            $arrShipmentProducts['shipment_quantity'][$select_shipping_id][]         = 1;