Play random movie array without repeat

1

I’m trying to help out a friend and apparently, I cant. :-/
There is 3 movie clips and 1 intro movie. At the end of each movie there is a function to call the root function

MovieClip(root).addFrameScript(626, 2);

This is the code on the root in frame 1

stop ();
import flash.events.MouseEvent;
import flash.events.Event;
import flash.display.MovieClip;
import flash.display.Sprite;

/*trace("Frame 1");*/



var movieArray:Array = new Array();

movieArray = ["PersonMc1","PersonMc2","PersonMc3"];



var MovieClipContainer:Sprite=new Sprite();
var IntroMc1:IntroMc=new IntroMc();
var PersonMc1:Person1Mc=new Person1Mc();
var PersonMc2:Person2Mc=new Person2Mc();
var PersonMc3:Person3Mc=new Person3Mc();


addChild (MovieClipContainer);

MovieClipContainer.addChild (IntroMc1);
MovieClipContainer.addChild (PersonMc1);
MovieClipContainer.addChild (PersonMc2);
MovieClipContainer.addChild (PersonMc3);


PersonMc1.visible = false;
PersonMc2.visible = false;
PersonMc3.visible = false;


PersonMc1.stop ();
PersonMc2.stop ();
PersonMc3.stop ();

and this is the code on frame 2

stop ();

var prevIndex:int;
clickStart ();

function clickStart () {


    if ((MovieClip(root).movieArray[Math.floor(Math.random() * 3)]) == "PersonMc1") {

        if (MovieClip(root).movieArray == PersonMc1) {

            clickStart ();

        } else {

            MovieClip(root).PersonMc1.visible = true;
            MovieClip(root).PersonMc1.gotoAndPlay (1);
            prevIndex = MovieClip(root).MovieClipContainer.getChildIndex(PersonMc1);

            MovieClip(root).MovieClipContainer.setChildIndex (PersonMc1,MovieClip(root).MovieClipContainer.numChildren-1);
            trace (prevIndex);
            trace (MovieClip(root).MovieClipContainer.numChildren-1);
        }


    } else if ((MovieClip(root).movieArray[Math.floor(Math.random() * 3)]) == "PersonMc2") {
        if (MovieClip(root).movieArray == PersonMc2) {
            clickStart ();

        } else {
            MovieClip(root).PersonMc2.visible = true;
            MovieClip(root).PersonMc2.gotoAndPlay (1);
            prevIndex = MovieClip(root).MovieClipContainer.getChildIndex(PersonMc2);

            MovieClip(root).MovieClipContainer.setChildIndex (PersonMc2,MovieClip(root).MovieClipContainer.numChildren-1);
            trace (prevIndex);

        }

    } else if ((MovieClip(root).movieArray[Math.floor(Math.random() * 3)]) == "PersonMc3") {
        if (MovieClip(root).movieArray == PersonMc3) {
            clickStart ();

        } else {
            MovieClip(root).PersonMc3.visible = true;
            MovieClip(root).PersonMc3.gotoAndPlay (1);
            prevIndex = MovieClip(root).MovieClipContainer.getChildIndex(PersonMc3);

            MovieClip(root).MovieClipContainer.setChildIndex (PersonMc3,MovieClip(root).MovieClipContainer.numChildren-1);
            trace (prevIndex);

        }

    }




}

There seems to be a lot of repeat code doing the same thing but I cant get it to work. There needs to be a way to create a random list and play that list without a repeat. The issue is, the current movie needs to animate OVER the previous movie but if the same movie animates twice, it is blank underneath and looks like a glitch.

I thought I could figure out an easy solution, but I’m just not all that good with AS3 as I aspire to.

Thanks very much for your time, I really appreciate it!