Need script to randomly fade mcs?

[Jaffasoft]

Ok you've posted yours and i was just about to post where i was up to. This almost working. Is eval depreciated?

But know it needs to be condensed down but cant work out how??

myRandomMcsUp = new Array(6, 7, 8, 9, 10, 11);
MovieClip.prototype.nextMc = function() {
	nextMcToFade = myRandomMcsUp.splice(random(myRandomMcsUp.length), 1);
	fadeClips();
	if (nextMcToFade.length == isNaN(0)) {
		trace("Finished fading up will now begin fade down");
		myRandomMcsUp.push(6, 7, 8, 9, 10, 11);
		nextMcToFade = myRandomMcsUp.splice(random(myRandomMcsUp.length), 1);
		nextMcDown();
	}
	trace(["mc_"+nextMcToFade]);
};
MovieClip.prototype.fadeClips = function() {
	this.onEnterFrame = function() {
		this["mc_"+nextMcToFade]._alpha += 5;
		if (this["mc_"+nextMcToFade]._alpha>=100) {
			
			nextMc();
		}
	};
};
MovieClip.prototype.nextMcDown = function() {
	nextMcToFade = myRandomMcsUp.splice(random(myRandomMcsUp.length), 1);
	fadeClipsDown();
	if (nextMcToFade.length == isNaN(0)) {
		myRandomMcsUp.push(6, 7, 8, 9, 10, 11);
		nextMcToFade = myRandomMcsUp.splice(random(myRandomMcsUp.length), 1);
		nextMc();
		trace("Finished fading down will now begin fade down");
	}
	trace(["mc_"+nextMcToFade]);
};
MovieClip.prototype.fadeClipsDown = function() {
	this.onEnterFrame = function() {
		this["mc_"+nextMcToFade]._alpha -= 5;
		if (this["mc_"+nextMcToFade]._alpha<=0) {
			nextMcDown();
		}
	};
};

[cancerinform]

I don't know your lower script but you can also change the two lines to this:

var myMc:MovieClip = this["mc_" + nextMcToFade];

var mc:MovieClip = myMc;

if you don't like eval.