Microsoft ppt genius?

[Edt]

I'm ok at powerpoint but not with the clever stuff...is there any way of achieving this:

Easy bit:
slide 1 is a map of Europe. Each country is a hyperlink to a data slide, on the slide sits a return icon.. taking presenter back to map. Sorted so far.

Head scratching bit:
After a country has been viewed, and blob is shown on the main map. The presentation wont be a fixed path through country by country (wouldnt be scratching head is it was) but the presenter could dip into a different selection of countries each time

Any suggestions greatly appreciated!
Ed

[Edt]

cheers for youe input.. however whatthey want isnt a text based visual clue, they want a graphic. So 1st time you visit the map of Europe, its just a map with no 'map pins' stuck in it. Visit france, come back, hey presto France has now got a pin in it. Had a wee google sesh to see if this was feasible but didnt return anything promising
Ed

[Edt]

boiler said:

Graphics as such do not obey the hyperlink change in colour. I think you could in theory write a macro to change the colour (or move the graphic in front of the map), but my macro writing skills are rusty. Andy.

It's a graphic they're trying to use (some coloured blobs). I've no experience with macros in ppt.. I do have a budy thats pretty hot at this sort of stuff but having trouble contacting him when need him most !!
cheers
Ed

[Edt]

Prepare to be amamzed.. did understand !! However...

The increasingly tall hurdle is now they want up to 6 different coloured dots per country. Bah.

[Edt]

that sounds great now I've *simply* got to owork out how to do it!
Ed