Add module WayForPay and New mail

Good afternoon. You need to add the module WayForPay on the website. The website in-house, not CMS, All installation requirements module has completed (Politics, return, etc.). As for the order form it is necessary to fasten the integration with New Mail. The website http://7-gram.com/.

After the form is supposed to open a pop up with a form selecting the City and branch of new or targeted delivery. After this Opens the payment form with the amount that the customer stumbles on the order form.