Add functionallity to iphone app

Hi I have implemented a web service that receives a 25 number which represents a number of a shopping ticket and returns all the ean´s of the products in the ticket with they respective quantity. Currently my scanner only reads 14 digit codes for adding individual products to the shopping cart module. I have an sqlite database where you search for the product with the respective ean and use the quantity and the price to calcule the total amount for x number of products added to the cart. Your job is to save to the shopping cart all the elements of the 25 ticket using my web service. (the number can be scanned or typed there is a special module for typing ) I used the zbar from source forge. The project is in spanish.