dynamic pages/sessions/checkboxes

Hi! I'd like to do the following: i have a page where the user chooses from a combo of a products, a combo of charactersitics, the date when he wants it and the quantity! he may not fill one of these inputs so the result will be the list of all products, or he may choose the product and not the characteristics etc so i will check in my database and show them! but that page is dynamic cause i have to add checkboxes close to each product !The purpose of these checkboxes is that the user can add the products to its cart of estimates(devis), so as the final result will be the estimate of the price of all products checked! The problem is that when the user checks a product, i should know wich product to add, i thought of giving the checkboxes, the product number ! any ideas ? PS: i'm using sessions cause i have many pages from where he can add whatever he wants to its estimate cart Thanks _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.