TopUp is an easy to use Javascript library for unobtrusively displaying images and webpages in a Web 2.0 approach of popups. The library is jQuery and jQuery UI driven in order to maintain cross-browser compatibility and compactness.
Features
TopUp is absolutely free, also for commercial use
A very easy setup process
Using TopUp presets keeps your HTML code 100% clean, no extra code needed whatsoever
The ability of displaying images, flash (from sites like Youtube, SWF and FLV files), movies (QuickTime, Windows Media and Realplayer), iframes, DOM elements and raw HTML
TopUp can be used along with Prototype (just include TopUp before Prototype)
TopUp is compressed with Yahoo! YUI Compressor to 47.6 KB (includes JS, HTML and CSS)
Usage of CSS sprites to reduce the amount of image requests to two per layout for faster loading
Cross-browser compatibility
Fancy layouts, animations and transitions
Auto-correction of size and position when required
