[Techmaker]

for (i=0; i<18; i++) {
	mc=attachMovie("photo","photo"+i,i);
	mc._xscale=mc._yscale=70;
	mc._x=70;
	mc._y=90*(y.length-i-1);
 mc.n=i;
	mc.LD.loadMovie("photo/mini/image_0"+i+".jpg");
 mc.onEnterFrame=function(){
 if(this.LD.getBytesTotal()>0){
 this.percents=this.LD.getBytesLoaded()/this.LD.getBytesTotal()*100;
	this.bar._xscale=this.percents;
	trace(this.n+" = "+Math.floor(this.percents));
 if(this.LD.getBytesLoaded()==this.LD.getBytesTotal()){delete(this.onEnterFrame);};
 };
 };
	mc.onRelease = function() {
		_root.attachMovie("big", "big", 0);
		_root.big._x=105;
		_root.big._y=54;
		_root.big.big_LD.loadMovie("photo/big/image_0"+i+".jpg");
	};
};

не проверял, но вроде должно работать