Ninja UI is a jQuery plugin enabling you to create beautiful web interface objects efficiently and unobtrusively.
jQuery has lots of plugins and jQuery UI to improve its functionality in many ways.
Ninja UI is a plugin for the framework that brings new alternatives to them in a single package.

It includes widgets like buttons, accordion, icons, tooltips/modal box, slider, rating, tabs, auto-suggest and canvas-powered loader icon.
They are unobtrusive and the icons used actually come as a separate plugin that is in the form of web fonts.
Download Ninja UI jQuery Plguin
Requirements: jQuery
Compatibility: All Major Browsers
Website: http://ninjaui.com/
Demo: http://ninjaui.com/examples
Download: https://github.com/ninja/ui