Альфа появление и исчезновение

[ryudzaki]

slot = 1;
var num = Math.ceil(Math.random() * 14 + 1);
attachMovie("re", "clip1", slot);//создаем первый клип
 
function attachRandomClip() {
slot++;
var num = Math.ceil(Math.random() * 14 + 1);
attachMovie("re" + num, "clip2", slot);
 
{clip2._alpha = 0;
clip1._alpha = 100;
alpha_set = 1;
clip1._x = 0;
clip1._y = 0;
clip2._x = 0;
clip2._y = 0;
}
 
 
onEnterFrame = function(){
attachMovie("re" + num, "clip", slot);
clip2._alpha += alpha_set;
clip1._alpha -= alpha_set;
           if (clip2._alpha >= 100 )
           {
                 delete  onEnterFrame;
           }
 }
}
var intervalID:Number = setInterval(attachRandomClip,random(4000)+500);