clickbank protection script

I sell downloadable products on the Internet through Clickbank. The credit card processing is done via Clickbank. Once my customers credit card is approved, my customer is sent to my [login to view URL] page. The [login to view URL] has a link to the downloadable product. After that, my customer will always have the url to my [login to view URL] page. I cannot prevent them from sending others to this url and collecting the money for themselves I need a Java Script, php or asp code that can insure that any visitor to the '[login to view URL]' page would only reach that page as a result of successfully having their credit card processed by ClickBank. Visitors that arrived at the page any other way (typing in the url), should be sent to my home page. If done is JS, I would actually like this to be saved as an encrypted javascript file (to prevent others from stealing this file) that I can upload to my host. I would then put a script on each [login to view URL] page that would call to this script upon page entry for verification. ## Deliverables Complete and fully-functional working program as well as complete source code of all work done. I want to be able to customize the code to use for any domain. In other words, if someone wants to pay me to insert the code on their host for protection, it should be able to be done Software will do the following: 1: Verify if user gets to [login to view URL] page only after successfully having credit card processed by Clickbank 2:If visitor tries to access the [login to view URL] page in any other way, like typing in the direct url, they will be denied access and sent back to home page. Complete copyrights to all work purchased. ## Platform Should be able to run on all 3.0+ Internet Explorer and Netscape browsers