I've been using .PHP formats for my pages on my site... the SQL database is created through the use of osCommerce. I'm trying to learn to make a form where they're all radio buttons, and customers can select it to their likes, and then submit it to the shopping cart... here's an example : http://www.psprint.com/printing_products/8x11_brochure_printing.asp [ on this site, they use javascript to do the calculations and such.. but i don't understand how they have it linked to be able to add the products to the shopping cart.. i was hoping someone out here knows how to do it and could let me know, because its been giving me many problems. Thanks. ]