Developping php (or ajax) module for a purchase website

The project. The client : a company based in DR Congo organizes purchases and fret (air transport) from Europe to Kinshasa. The company develops a new service : you go on its website and you arrive on a 3 frames html page. [login to view URL] Frame left : listing of website shops. Frame top : module "price requirement" (what you have to develop) Frame main (right) : navigation in shops websites. The visitor navigates into the Shops websites (frame right). When he finds a product that he he wants to get in Congo, he clicks in a button located in the TOP FRAME. The module records the (hidden) url in the MAIN FRAME (specific url of the choosen product). He puts the quantity and write manually the product code and also slides the picture of the product into the TOP FRAME. The visitor can add as many products he wants. When finished, the visitor registers (name, address, tel, email). An email is sent at the purchase company who calculates the price of the products with transport ans customs to Kinshasa. The company sends a quotation to the client. Here is a "layout" of the web site (not active at the moment) see at [login to view URL] Thank you for your reply and best solution. Harold Adant - Pageweb Congo