I have been looking through some of the other forums and stumbled across this post (http://www.webmasterworld.com/forum46/448.htm), I would like to do this on my baby's website (nothing commercial) and would like to understand the principles. Why is the URL in the "image source" code? can you not test this locally (javascript illiterate) and how would you apply it to a specific image? Sorry for my wandering in the wilderness.