I have been building a simple form and am using this script: http://javascript.internet.com/forms/order-form.html This has worked fine for shipping and product extras, however i have products listed and want to have customers to have the option to pick the product quantity, how can i modify it so that it will update the total according to quantity of product X and Product Y. I would like to achieve this by just entering a number quantity but a dropdown box (with quantity options) could probably suffice, anyone have any advice?