MovieClipLoader class help

[MyFriendIsATaco]

I'm making a slideshow...and I am using a moviecliploader to preload all of the images into the flash movie...how can i detect when all of them have loaded so i can start it? i know itll detect individual movie clips with the onLoadComplete event, but i want to know when all of the images have been loaded: here is a sample of my code im using:

var imgSrcs:Array=["images/image1.jpg","images/image2.jpg"...];
var loadingImages:MovieClipLoader=new MovieClipLoader();
var listener:Object=new Object();
loadImages.addListner(listener);
listener.onLoadComplete=function(target_mc:MovieClip){
//code here
};
for (i=0;i<imgSrcs.length;i++){
     _root.img_holder.duplicateMovieClip("img_holder"+i, i);
     loadingImages.loadClip(imgSrcs[i],eval("img_holder"+i));
}