A/B Split Run Testing Script - Content into IFRAME

I need a JAVASCRIPT that rotates the URL content inside an IFRAME within the body of an HTML document based on a varible in the URLS source. I am using this for split run testing. Example: User A clicks on a link with a unique varible: [login to view URL] If the URL source = testvaribleA then the IFRAME is sent a unique URL associated with the varible. Like variableAurl= <[login to view URL]> into an IFRAME on the same page. If testvaribleB then the IFRAME is sent a unique URL associated with the varible. Like variableBurl= <[login to view URL]> into an IFRAME on the same page. I would like to be able to add up to 5-10 unique varibles associated with unique URL content. As well as have a fall back where if the varible passed in the URL is not found, then it will fall back to a defaut URL for content. Also, if the browser does not support IFRAME tags or javascript, then the user needs to be redirected to default web page oneway or another. ## 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