Mouseover script question, please help and be my Hero lol?

I am tryingto add a script to my site where i can mouseover a click able text link and before clicking a description with a picture would appear in a specified box location. Please see something very similar on Subways site:

http://www.subway.com/applications/Menu/frmMenuPanel.aspx?CC=USA%26amp;LC=ENG%26amp;MenuID=36 thank you kindlyMouseover script question, please help and be my Hero lol?
Well you are asking for a boat-load of code and information. You need to learn web programming. Good luck.

little ceasers