public static function SetExecutePaymentInterrupt($bActive)
    {
        if ($bActive) {
            $_SESSION[TdbShopPaymentHandler::CONTINUE_PAYMENT_EXECUTION_FLAG] = '1';
        } else {
            if (array_key_exists(TdbShopPaymentHandler::CONTINUE_PAYMENT_EXECUTION_FLAG, $_SESSION)) {
                $_SESSION[TdbShopPaymentHandler::CONTINUE_PAYMENT_EXECUTION_FLAG] = '0';
                unset($_SESSION[TdbShopPaymentHandler::CONTINUE_PAYMENT_EXECUTION_FLAG]);
            }
        }
    }