Hey everyone. I was hoping to get some help on this relatively simple issue (not so easy for someone who doesn't know any JS). Upon rollover of a thumbnail image (no mouse click), I would like to have a large version of the image appear in the page. A good example of what I'm looking for can be found here: www.laurastajanovic.com (I tried using the source code found on the site, but doesn't work for some reason).

I think its a simple code, but not sure. Any help would be greatly appreciated. Thanks.