help with my preloader

// preloader script
var allBytesTotal:Number;
var allBytesLoaded:Number;
_global.whichClip = 0;
_global.clipsCompleted = false;

top_layer._visible = false;
var ClipFlag:Array = Array(6);

// number of clips were loading to keep the flags ..
//used to make sure we just load up the bytes once

this.createEmptyMovieClip("img_mc1", 999);
this.createEmptyMovieClip("img_mc2", this.getNextHighestDepth());
this.createEmptyMovieClip("img_mc3", this.getNextHighestDepth());
this.createEmptyMovieClip("img_mc4", this.getNextHighestDepth());
this.createEmptyMovieClip("img_mc5", this.getNextHighestDepth());
this.createEmptyMovieClip("img_mc6", this.getNextHighestDepth());

var my_mcl:MovieClipLoader = new MovieClipLoader();
var my_mc2:MovieClipLoader = new MovieClipLoader();
var my_mc3:MovieClipLoader = new MovieClipLoader();
var my_mc4:MovieClipLoader = new MovieClipLoader();
var my_mc5:MovieClipLoader = new MovieClipLoader();
var my_mc6:MovieClipLoader = new MovieClipLoader();

_global.numOfClips = 6;

// Create listener object:
var mclListener:Object = new Object();
mclListener.onLoadError = function(target_mc:MovieClip, errorCode:String, status:Number) {
 trace("Error loading image: " + errorCode + " [" + status + "]");
};

mclListener.onLoadStart = function(target_mc:MovieClip):Void { 
target_mc._visible = false;
};


mclListener.onLoadProgress = function(target_mc:MovieClip, numBytesLoaded:Number, numBytesTotal:Number):Void {
  var numPercentLoaded:Number = numBytesLoaded / numBytesTotal * 100;
    target_mc._visible = false;

};

mclListener.onLoadComplete = function(target_mc:MovieClip, status:Number):Void {
trace("onLoadComplete: " + target_mc);
_global.whichClip++;
  
      if (target_mc == img_mc1) {
         _root.loadMovie("intro.swf");
        }

    if (_global.whichClip == _global.numOfClips) {
        trace("ok..");
        target_mc._visible = false;
        trace("ok..");
        _global.clipsCompleted = true;
    }
};

my_mcl.addListener(mclListener);
my_mc2.addListener(mclListener);
my_mc3.addListener(mclListener);
my_mc4.addListener(mclListener);
my_mc5.addListener(mclListener);
my_mc6.addListener(mclListener);

my_mcl.loadClip("intro.swf", img_mc1);
my_mc2.loadClip("ny.swf", img_mc2);
my_mc3.loadClip("dc.swf", img_mc3);
my_mc4.loadClip("retail.swf", img_mc4);
my_mc5.loadClip("mart.swf", img_mc5);
my_mc6.loadClip("development.swf", img_mc6);

onEnterFrame = function(){
    if(_global.clipsCompleted) {
    trace ("ok");
    }
}


this.stop();
stop();