fscommand("showmenu",false);
k2._visible = k1._visible=false;
var area_y:Number = max_y-min_y;
var k:Number = max_y-bar._y;
onEnterFrame = function () {
bar.onPress = function() {
  startDrag("bar", false, bar._x, k1._y, bar._x, k2._y);
  bar.onEnterFrame = function() {
   txt._y = -bar._y;
  };
};
bar.onRelease = function() {
  this.stopDrag();
};
bar.onReleaseOutside = function() {
  this.stopDrag();
};
top.onRelease = function() {
  if (bar._y-k1._y>0) {
   if ((bar._y-k1._y)<=20) {
    bar._y = k1._y;
   } else {
    bar._y -= 20;
   }
  }
};
bot.onRelease = function() {
  if (bar._y-k2._y<0) {
   if ((bar._y-k2._y)>-10) {
    bar._y = k2._y;
   } else {
    bar._y += 10;
   }
  }
};
};

fscommand("showmenu",false);菜单不可见了，但测试环境下不行。要单独打开SWF看效果。