Hi, I have a really simple project for an expert with javascript and the paypal API. Basically, I need a script that will provide a $5 discount for every three items purchased. For example: 3 items = $5 savings 6 items = $10 savings 9 items = $15 savings….. (Budget: $30-$250 USD, Jobs: Javascript, Paypal API, PHP, Shopping Carts)