for osCommerce Online Merchant v2.2

This contribution adds a Discount Rate per Customers, the administrator can easily edit discounts from the administration Customers panel. Every Customers has its own discount rate. The prices in catalogue are already shown with the applied discount, unlike other contributions like this that use the "order_total" method, to show a final discount. Discount rate is applied on every price, also on product attributes, but it is not applied on special prices. Please visit osCommerceITalia @