When I load a page, is there a way to show an address in the browser naviagtion bar which is not the page address. Kind of like spoofing a page, but without using frames.

My site is currently using a forwarding script for our DNS, and it forwards to a location behind an IP address. I want to make it so that the original page address www.whatever.com is still at the top, but frames can only be loaded when the page is executed, and at this time, it is located behind the IP address.

I want anything which would "change" the address in the address bar to its original.