/* 4 steps to the order */
    switch (intval($step))
    {
        case 1:
            displayAddress();
            break;
        case 2:
            if(Tools::isSubmit('processAddress'))
                processAddress();
            autoStep(2);
//            displayCarrier();
            Tools::redirect('modules/cashondelivery/validation.php');
            break;
        case 3:
            if(Tools::isSubmit('processCarrier'))
                processCarrier();
            autoStep(3);
            checkFreeOrder();
            displayPayment();
            break;
        default:
            $smarty->assign('errors', $errors);
            displaySummary();
            break;
    }

Tools::redirect('modules/cashondelivery/validation.php');