referrer: how to find out?

Is there any way to find out where people came from when they arrived at my page? Specifically, I'd like to know where they clicked on when they arrived at a dead page so I can either fix it (if it's on my site) or tell the webmaster of the site with the dead link to fix it. I've got an error page that comes up when somebody tries to access a page that's not there. On this page, I'd like to have a short PHP script that finds out where the person came from. anyway, I haven't found out if/how I can do that. Any help? lucas -- Lucas K. Mathis http://www.lkmc.ch/ -- "Well fuck all them people, don't need no excuse for being who I am." -- (Frank Zappa, Joe's Garage)