Now to add a caviat!

I am trying to make a pan/zoom thing with the following: I'd like to take a map of my county in a box, and allow you to pan around the map, BUT when the mouse goes over an object or a word, I'd like a description / picture to pop up on the left of the map. I don't care how the user pans around - I guess up-down/right-left arrows are the best, but when the mouse goes over or clicks on a road name, I'd like to have a little description box pop up outside of the map.

Any tutorials? Does everyone hate me for asking this? I don't think Zoom would be too necessary.