The problem: If your customer does not initiate some ASP activity on your site for 20 minutes the cart contents will be lost. If you have a large range of products on your site and there is a good possibility of customers adding many items to the cart, it is likely that your customer may take a coffee break or pause during the order process. If they're gone for 20 minutes or more they will come back to see an empty cart. After spending a fair amount of time adding items to their cart, they most likely will not do it again.
The solution: Lost sales and customer frustration can be avoided with an automated Session Refresh system that doesn't require user intervention. If a customer's Session is at risk of expiring, this add-on will keep it alive as long as their browser is open to your site. It also automatically records the page (and search query string) where they came from and presents a link to return to that page. Works with both ASP & HTM pages.