public static function unserialize($strSerialized, $strUniqueId = "")
    {
        $objReturn = parent::unserialize($strSerialized);

        if (get_class($objReturn) == "ValidFormBuilder\\ValidWizard" && ! empty($strUniqueId)) {
            $objReturn->__setUniqueId($strUniqueId);
        }

        return $objReturn;
    }