Loading Movie Problem

programming flash
1

see i have this script in my flash movie:


_root.navigation = 1
loader.onEnterFrame = function() {
   if (_root.navigation == 1) {
   loadMovie("green1.swf", "loader");
   unloadMovie("loader2");
  }
  if (_root.navigation == 2) {
   loadMovie("green2.swf", "loader2");
   unloadMovie("loader");
  }
 };

and this on a button on green1.swf


btn.onPress = function(){
_root.navigation = 2
}

how ever, the main movie would not call the function for _root.navigation = 2
i think this… should work, but it doesn’t. the problem should be on the main movie, i’m sure the function from the green1.swf is called.

anyone can try to help me here?