Free jQuery Images Light Box Gallery
Image Zoom is a jQuery plugin that implements a smooth zoom effect on images. It uses vector graphics to create a graceful transition between the thumbnail and the full-sized image.
Lightbox-like interface (dark overlay, previous/next image switching)
Highly customizable (CSS styling, custom HTML wrapper block)
Images can be zoomed in with a fade-in effect or with rotation
Provides API functions to zoom in and zoom out
Lightweight — the packed version is less than 7KB
The plugin works in all major browsers, including Firefox 2+, Opera 9.5+, Google Chrome, Safari 3+, and Internet Explorer 6+.