The Fancybox plugin adds the fancybox media viewer from http://www.fancybox.net to your blog allowing you to use this feature within your posts.
FancyBox is a tool for displaying images, html content and multi-media in a Mac-style “lightbox” that floats overtop of web page. It was built using the jQuery library. Licensed under both MIT and GPL licenses
Enable “mouse-wheel” navigation: Using fancybox you can make the media (images etc) in your posts into a gallery. Tick this setting if you want to allow your visitors to use their mouse-wheel to scroll through your gallery items.
Fancybox JQuery Selector: The fancybox JQuery selector determines how fancybox will interact with the media on your site. This plugin comes with two pre-set selectors (see below). If you know a little about fancybox and JQuery you will be able to further configure fancybox using this setting but you can use it as is if you prefer.
· Fancybox Library