Convert a requested url to a Destination URL in javascript?

[cf05]

How to convert a dynamic requested URL to a destination URL in javacript?

I just give an example to clarify my question.

A dynamic requested URL:
http://techbargains.com/jump.cfm?//i...arg=B00067Z098

The above link actually sends visitors to the destination URL

http://www.amazon.com/gp/product/B00...49650?n=172282


I want to display this destination URL instead of requested URL so visitors don't need to click the requested URL to get the destination page.

the javascript code will send the requested URL to the server, and get the destination URL and display it in the browser.

I tried to use Request.Querystring("http://techbargains.com/jump.cfm?id=108&arg=B00067Z098")
but it doesn't work.

Any help will apprecaite