TinyTips – Lightweight Tooltips jQuery Plugin
TinyTips is a very lightweight jQuery plugin that gives the ability to add tooltips to pretty much any element on a page. Thoroughly documented and designer friendly. TinyTips is very easy to install and use. Simply include TinyTips and the latest release of jQuery in the <head>.
You can also give it a nice style by editing the stylesheet. This can be customized to make it look any way you want. You can also edit the markup for the tooltips by using the dev version. The images for the default tooltip style are included in both the min and dev releases inside of the demo folder.
Requirements: jQuery Framework
Demo: http://www.digitalinferno.net/demos/tt-1-0/index.html
License: License Free