Tutorialzine has written a simple jQuery tooltip plugin called Colortip. It converts the title attributes of elements within your page, into a series of colorful tooltips. Six color themes are available, so you can easily match it with the rest of your design.
You can also easily create your own tooltip designs by just including three additional style classes to your stylesheet and adding an element to the supported colors array in colortip-1.0-jquery.js.
Requirements: jQuery Framework
License: License Free