AJAX calc on ASP Classic Page

Have what will be a checkout page for a cart system - but I want people to be able to update their quantity and have the page automatically update the sub-total - shipping - tax - grand total. Attached is the page - the qty is filled from the form on previous page - I want the page to initially show the values based on that number - then if the user changes the value - automatically calculate and show the values using AJAX - so the whole page does not have to refresh - can use an onchange function and then Java to determine the values and drop into variable and show the variable. The tax will be 7.92% shipping needs to be based on US or "Other" - possibly Canada will be seperate - then US addresses will have up to 3 choices for shipping - regular - second day and overnight. - as with the change in quantity - change in shipping drop down needs to change totals. The country settings will come from [login to view URL]("country") - USA - CAN - OTR (other) This must be ASP CLASSIC - use of Java or VB script - no 3rd party controls forgot to mention - price of product is 9.99 but if you buy one - you get second at half off - so 5.00 - so if you buy 4 - 2 are at 9.99 and 2 are at 5.00 - etc. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform ASP Classic; AJAX