Pop-up image with live text

What I'm trying to do is have a cool little window or image with live text i开发者_如何学JAVAn it pop up like an alt, except I want it to open when you roll over a specific line of text.

Suggestions anyone?

Here is an article on doing tooltips style popups. That should get you started and you can adapt it to the window layout that you want.

http://www.web-graphics.com/mtarchive/001717.php