Custom 404 page

I have a custom 404 page, but I want to include on this page the url that gave the error. I tried the variable $HTTP_REFERRER but it is empty.

Any suggestions?

Try spelling with one R ;-)

$HTTP_REFERER

(given it's American spelling, surprised it hasn't got a z in it somewhere)

oops, I did use one r. so i still have the problem

It was giving me a blank var, because I was tying in a wrong url at the address bar. I just tried clicking an a bad link and the var worked.

Thanks anyways