TopUp is absolutely free, also for commercial use (view the license)
A very easy setup process: only one(!) include and nothing more
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
The possibility to create groups
Support for AJAX requests
It's open source: check out http://github.com/archan937/topup and enhance TopUp yourself!
And many more...
Just like many among us, I had the need for a lightbox-like library to use for a website I was working on. After examining libraries such as Lightbox, Lightbox2, LightWindow, Highslide, Thickbox, ModalBox and many more, I haven't found one that really suited my needs. Either the installation was to complicated, they aren't unobtrusive because you have to mess with the HTML code, the appearance isn't that slick, the transitions were glitchy, conflicts with other libraries occured or the possibilities were lacking.
Enter TopUp! The installation of TopUp consists of including only one file (no images or stylesheets!), the look-and-feel is Apple-like, the animations and transitions look fancy, you can still use Prototype, it is so easy to specify options and last but not least: you can stay updated with the latest version without changing any code. Great for expansions and bugfixes!
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