Ajax Checkout For Oscommerce 1

      This contribution will add an alternative way for your customers to checkout: a new single page AJAX-driven checkout procedure to your Oscommerce store. New alternative AJAX checkout page loads dynamic content instantly, while customer selects shipping and payment methods, change delivery or billing address without slow whole page reloading. For example, if customer selects shipping method, only shipping area of the page is modified leaving the rest of the page as is