Slightly off topic, ... but to clarify While I'm not, myself, Walter Zorn, I have downloaded and examined his library -- actually quite a while ago.The example that you pointed out actually does not use the same image. The image is sampled by the (very hefty) javascript library, which then generates a zillion little div's with background colors to match the image. Then these are positioned on the web site.Basically, this technique is not extreemly efective, and is often rather slow.Back to topic:As imbored531 said, just make a copy.For all but the most gigantic images, make a copy of your