gistfile1.txt

    nextStep: function(transport){
        jQuery('.checkout-block-button button').mxLoaderOverlay('hide');
        jQuery('#shipping-method-please-wait').hide();
        if (transport && transport.responseText){

            try{
                response = eval('(' + transport.responseText + ')');
            }
            catch (e) {
                response = {};
            }

            if (parseInt(response.order.error === 1) {
                alert(Translator.translate(response.message)); // we should render the correct erro message
                jQuery('.checkout-loader').hide();
                return false;
            } else {
                var ajaxResponse = new MXAjaxResponse();
                ajaxResponse.process(transport.responseText);
            }
        } else {
            new Messi("An error occurred while saving your order", {title: 'Error!', modal: true, titleClass: 'error'});
        }
    }