CoolTips is a lightweight unobtrusive JavaScript web-browser tooltips replacement technique. CoolTips is used to replace conventional web-browser tooltips which has been tested on Windows and Mac. Firefox, Opera, Safari, Internet Explorer 6, 7. The tooltips get contents of title attribute, so it’s fully unobtrusive. CoolTips is an Object-Oriented class based on Prototype JS and Script.aculo.us frameworks. You can customize the look of different CoolTips instances using bunch of parameters or CSS easily.

Requirements: Prototype JS and Script.aculo.us Frameworks
Demo: http://www.wildbit.com/labs/cooltips/
License: MIT License