Background Preview

[Mage]

I have seen background sites which have a single tile of the background and you hover over the tile and it sets it as the background, is it possible to do this using just html/java script? if not, then am I able to have a preview box at the top which it does this to?

[giz]

Yeah, it's Javascript, but at the moment I can't find the little code snippet I saved to make it work. There must be loads of examples of this on tutorial sites.