New to actionscript.. flash map..please help.. with this

Hi,

ive done flash but new to actionscript… this is actionscript 1.0 which I am using for a map… sorry, its the only decent map tutorial i found that fits what I am doing now… and so i had to use it. I need help with this script …

basically i have a row of buttons on top when i mouse over the map should highlight certain regions which are visiblily = false

here is what I am using

afrika_btn.onRollOver = function() {
if (map_afrika._visible == false) {
map_afrika._visible = true;
map_afrika.play();

 } else {
  map_afrika._visible = false;
  map_afrika.gotoAndStop(1);
 }}

what I want to do though is… when I mouse over afrika_btn as soon as i move out of that button I want the map_afrika to dissapear… so mouse over…appear and mouse out dissapear…

ive tried some ideas but yea beacause im new i dont know where to get help and how to do this simple thing… would appreciate any help…

Obed