Fleegix.js JavaScript Toolkit
Abstract
Fleegix.js provides an extremely lightweight, cross-browser set of JavaScript tools for building dynamic Web-app UIs.
Using Fleegix.js doesn't require you to drink a bunch of toolkit Kool Aid, and the code doesn't try to turn JavaScript into Ruby, Java, C++, or any other language – the code is plain, ordinary, idiomatic JavaScript.
It will not turn you into a rock star, but it will help you kick JavaScript ass.
Fleegix.js is well tested in the major-market-share browsers – Firefox 1+, Internet Explorer 6+, and Safari 2+. It is licensed under the Apache License, Version 2.