Hjälp med ActionScript 2 kod (Randomize+fade in och fade out)

var randNum:Number; 
pics = ["Random/1.png","Random/2.png"]; 
var loadListen:Object = new Object(); 
loadListen.onLoadStart = function(target_mc) { 
     target_mc._alpha = 0; 
} 
loadListen.onLoadInit = function(target_mc) { 
     fadeInImage(target_mc); 
} 
var my_mcl.MovieClipLoader = new MovieClipLoader(); 
my_mcl.addListener(loadListen); 
function randomImage(oldN) { 
     randNum = random(pics.length); 
     if (randNum == oldN) { 
          randomImage(randNum); 
     } else { 
          my_mcl.loadClip(pics[randNum], holder_mc); 
     } 
} 
function fadeInImage(name) { 
     holder_mc.onEnterFrame = function() { 
          name._alpha += 5; 
          if (name._alpha >= 100) { 
               name._alpha = 100; 
               delete holder_mc.onEnterFrame; 
          } 
     } 
} 
randomImage(randNum);