Lighbox JS

So here is lightbox. The predecessor to greybox and thickbox. Lightbox is done using Javascript, and thickbox uses Javascript and JQuery as well. Sam, I think you would be able to implement the Lightbox stuff, just follow the lightbox JS link. There is also another version of the lightbox built using JQuery, called thickbox. Although, I think that would be a bit more difficult for you to get going. But the lightbox stuff is easy, the page has all the code and steps you need to get it working.
Lightbox JS
Greybox (inspired by Lightbox)
Thickbox (inspired by Lightbox and Greybox)