[Хемуль]

Пример с рекурсией (LoL) и обьектом Tween...

import mx.transitions.Tween;
import mx.transitions.easing.*

var movieClipsDissolveSpeed:Number = 10;
var movieClipsBaseName:String = "mc";
var movieClipsNumber:Number = 4;
var movieClipsLeft:Number = 100;
var movieClipsTop:Number = 100;
var movieClipsInterval:Number = 20;

var currentMovieClipX:Number = movieClipsLeft;
for (var index:Number = 1; index <= movieClipsNumber; index++)
{
	var newMovieClipName:String = movieClipsBaseName + index;
	var newMovieClip:MovieClip = this.attachMovie(newMovieClipName, newMovieClipName, this.getNextHighestDepth(), {_x:currentMovieClipX, _y:movieClipsTop});
	currentMovieClipX += newMovieClip._width + movieClipsInterval;
	newMovieClip._alpha = 0;
}

createTweenForClip(1);

function createTweenForClip(clip:Number)
{
	var clipToTweenName:String = movieClipsBaseName + clip;
	var clipToTween:MovieClip = this[clipToTweenName];
	var newTween:Tween = new Tween(clipToTween, "_alpha", None.easeNone, 0, 100, movieClipsDissolveSpeed, false);
	if (clip < movieClipsNumber)
	{
		newTween.onMotionFinished = function()
		{
			createTweenForClip(clip + 1);
		};
	}
}

На сцену из библиотеки вставляется 4 мувиклипа и с ними уже работает скрипт.
Пример прикрепляю...