Javascript to Overide Input Type Button Img Src and Action

Hello, I use a shopping cart called Volusion (<[login to view URL]>). It works well for selling most products. On this page: <[login to view URL]> There is a button that says add to cart. I want some javascript I can add to this page that will do the following: 1. Change the button img src to another img which I will create and store on [[login to view URL]][1] (which will say "Buy Now" instead of add to cart). 2. Change what happens when the user clicks the button. Instead of adding it to the cart as the system does now, I want the browser to be redirected to <[login to view URL]> However, I cannot access the source of the page directly. It is created by a system process. I do have access to edit the body content as HTML. Why do I want this? I have one new product that I would like to sell on the [[login to view URL]][1] website, but I want the checkout to be performed by a different system ([login to view URL]) If you can please help me figure out how to do this (presumably with Javascript), I would appreciate. Please send any comments or questions you have to me. Thanks for looking! Harry ## 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 javascript