jQuery UI provides abstractions for low-level interaction and animation, advanced effects and high-level, themeable widgets, built on top of the jQuery JavaScript Library, that you can use to build highly interactive web applications.

Rich effects and UI widgets
jQuery UI features low-level effect and interaction API's (like drag and drop) as well as full-featured and highly configurable ready-to-use widgets. Supports IE 6.0+, Firefox 3+, Safari 3.1+, Opera 9.6+ and Google Chrome.

Powerful theme framework
Unique CSS framework, ThemeRoller tool and theme gallery makes creating a custom look and feel for your application fast and easy.
Recent activity
jQuery UI 1.8 adds position, button, autocomplete, new widget factory, lighter core. What's new
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