Customweb_PayUnityCw

Open js/customweb/payunitycw/checkout.js and find the next lines (~26):

        if (typeof Review != 'undefined') {
            checkout.accordion.openSection = checkout.accordion.openSection.wrap(this.opcGotoSection.bind(this));
            Review.prototype.save = Review.prototype.save.wrap(this.beforePlaceOrder.bind(this));
            Payment.prototype.save = Payment.prototype.save.wrap(this.beforePaymentSave.bind(this));
            if (typeof shippingMethod != 'undefined') {
                shippingMethod.onSave = this.loadPaymentForm.bindAsEventListener(this);
                shippingMethod.saveUrl = this.saveShippingUrl;
            }
        } else

replace then with:

        if (typeof FireCheckout !== 'undefined') {
            checkout.save = checkout.save.wrap(function(original, urlSuffix, forceSave) {
                if (this.isAuthorization('hidden') || this.isAuthorization('server') || this.isAuthorization('ajax')) {
                    try {
                        this.savePaymentInfoInBrowser();
                    } catch (e) {
                        return;
                    }
                }
                original(urlSuffix, forceSave);
            }.bind(this));
            checkout.setResponse = checkout.setResponse.wrap(function(original, response) {
                try {
                    json = response.responseText.evalJSON();
                } catch (err) {
                    alert('An error has occured during request processing. Try again please');
                    checkout.setLoadWaiting(false);
                    $('review-please-wait').hide();
                    return false;
                }

                if (json.order_created) {
                    if (this.isAuthorization('hidden') || this.isAuthorization('server') || this.isAuthorization('ajax')) {

                        this.requestHiddenFields(response, original.bind(checkout, response));
                        return;
                    }
                }
                original(response);
            }.bind(this));
        } else if (typeof Review != 'undefined') {
            checkout.accordion.openSection = checkout.accordion.openSection.wrap(this.opcGotoSection.bind(this));
            Review.prototype.save = Review.prototype.save.wrap(this.beforePlaceOrder.bind(this));
            Payment.prototype.save = Payment.prototype.save.wrap(this.beforePaymentSave.bind(this));
            if (typeof shippingMethod != 'undefined') {
                shippingMethod.onSave = this.loadPaymentForm.bindAsEventListener(this);
                shippingMethod.saveUrl = this.saveShippingUrl;
            }
        } else

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