We need someone to make 2 simple modifications to our shopping cart:
1. If the inventory stock listed in Oscommerce is equal to 0 or less, we need for the "buy now" & "add to cart" button to default to a sold out button that cannot be clicked on.
2. If a customer updates the quantity of an item in their shopping cart to a quantity greater than our current stock, change to value to the maximum amount we have currently in stock, and display a message to the customer.