Hi all,
I'd really like to implement an image system for my folio like that of Deviant art. In which I'd like to click on a small image to have it load a larger version in its place. I don't want to do it with preloading but want to call/download the large image if its clicked on. Further I'd like a click on the large image to return it to the small size.
Here is a deviant page of mine as an example:

Can anyone help me work out how to do this?