Use a dropdown menu to apply a discount to your PayPal button

Using a dropdown menu rather than a text box to apply different discounts to your PayPal button is actually very simple.
All you need to do is change this code:

<input type = "text" size = "10" name = "coupcode"; />

to this:

 <select name= "coupcode";>
 <option value="coupl"> Friend
 <option value="coup2" > Online
 <option value="coup3">Other

You can see a working example of this at