imgs=new Array(...) 

for(i=0,t="";i<imgs.length;i++){ 

t+="<img src='a"+imgs[i]+"_1.jpg' style='background-image:url(a"+imgs[i]+"_2.jpg)'></img>" 

} 

a.innerHTML=t

var images:Array = new Array[...];

var container:Sprite = addChild( new Sprite ) as Sprite;

for( var i:uint =0; i < images.length; i ++ )

    container.addChild( load( images[i], 0, 50 * i ) );

 

function loadImage( url:String, x:uint = 0, y:uint = 0 ):DisplayObject

{

    var loader:Loader = new Loader();

        loader.load( new URLRequest( url );

        loader.x = x;

        loader.y = y;

    return loader;

}