I don't think you can, since the history basically logs connections. The best way is probably using iframes to display another page in the current page, then crazy java it, but they aren't too compatable with browseres other than IE. Shouldn't try too hard though, images are too hard to keep from stealing. I don't think there is a sure way to stop content (as in images) stealing that you want to be displayed. Zip files are another story though..
oh, and post the site sometime or pm. I want to see how hard you can make it to take
. Don't worry though, i wouldn't steal them. Of course I will understand if you want to keep it private. So no waoorys if that is the case
by the way, that web pae you posted is what I used when I started to learn the basics of html and whatnot. It is really nice.