Interactive Map

Hey,
Ive been asked to a interactive map, so when people ohver over sections of england, they will popup and animate or whatever.

Then when a person clicks onto the section of england, i need it to be linked to a website…

but the person who asked me to make this map wants to be able to change the links on the map from time to time, and as they are not well up on flash… i thought maybe i could set the links using an external file, such as a txt, html or xml file. Which would be best?

and how do i go about making each section link from an external file, any people got any scripts? or tutorials online i could view.

Much appreciated