Convert PayPal button into Fortumo button

I have a simple membership website that uses Paypal. When payment is made it marks the user in the database as paid and allows them to view the restricted part of the website. In addition to the PayPal button I want to add a fortumo button (Look here for info : [login to view URL]) I just need the simple cross platform option. I am attaching the script for the current paypal button for you to have a look at. I am not authorized to give you access to the complete website, so I require someone who is online and can write the code and give it to me to test. Its a very simple job and needs to be done as quickly as possible. Please only bid if you are online and can finish the job in a short time.