The Script: Lightbox JS v2.0

Lightbox JS is a simple, unobtrusive script used to overlay images on the current page. It's a snap to setup and works on all modern browsers.

Based on JavaScript, Lightbox JS is fairly easy to install and modify according to your needs. What you need to do is simply to include three JavaScript files in the header of your page, and make some corresponding modifications to image calls. The end result is quite effective.