I know I've seen this around, but I can't seem to find how to do it. How do you apply an invisible watermark to an image so that when it's only visible when highlighted? :|

http://www.n-sane.net/guest_tutorials/hidden_image/index.php

this only works in ie though ~_~
and doesnt work at all in mac

Thanks, Heather. :] I'd known it was browser-dependent, but still handy. Topic can be closed.

you're welcome!

topic closed