Image Rollovers

[eluser]ashabi[/eluser]
My client is insisting that the top menu navigation is images and not live text. So I need to make a rollover affect on the images. Being a beginner with CI. How would I go about this? Is there a image helper for rollovers?

[eluser]Maglok[/eluser]
CI is a framework for the code, rollovers are a layout thing. That said, how I'd do it:

http://wellstyled.com/css-nopreload-rollovers.html