I need a discount code feature for my paypal buttons.
I need a small form box and a submit button that changes the price values of my paypal buttons by a specified amount - like 10$ - and gives an ajax "success" or "denied" to the user if they entered the right or wrong code.
For instance on my site: [login to view URL] the 1 month supply is 60$, the ajax button should change the paypal button's value to $50 if they enter the right code.
The codes that trigger the amount should be
fittipdaily
groomedla