Randomly Load External VDO w/o Repeat the Same File while Playing

Hey! I have nearly done programming my Flash file. But, I'm so tired of making it not repeat the VDO file it is playing.

I hope that you guys will have that solution for me. *()*

This is my source code

////////////To Load any VDO///////////////
import flash.net.NetStream;
import flash.net.NetConnection;
import flash.media.Video;

var video;
var nc;
var ns;

nc = new NetConnection();
nc.connect(null);
ns = new NetStream(nc);
ns.client = this;
video = new Video(550,400);
addChild(video);
video.attachNetStream(ns);

///////////////////////////

/////////////Array for VDO Files/////////////
var VdoStore:Array = new Array("westler.flv","TomAndJerry.flv","GetThere.flv");

///////////////////////////

/////////////Keyboard and Screen Show////////////////
import flash.events.KeyboardEvent;
import flash.events.Event;

stage.addEventListener(KeyboardEvent.KEY_DOWN,onDown);
stage.addEventListener(KeyboardEvent.KEY_UP,onUP);



function onDown(e:KeyboardEvent):void{
var SelectedVid = VdoStore[Math.floor(Math.random() * VdoStore.length)];
//var DontRepeat:Array = new Array(); << I tried create another array to keep the file which was played

 if (e.keyCode==49)
 {
  ns.play(SelectedVid);
  stage.removeEventListener(KeyboardEvent.KEY_DOWN,onDown);
  //onUP(null);
  }
 if (e.keyCode==69)
 {
  ns.play(SelectedVid); 
  stage.removeEventListener(KeyboardEvent.KEY_DOWN,onDown);
  //onUP(null);
  }
 }
function onUP(e:KeyboardEvent):void
{
 if(e.keyCode==49)
 {
  stage.addEventListener(KeyboardEvent.KEY_DOWN,onDown);
 }
 if(e.keyCode==69)
 {
  stage.addEventListener(KeyboardEvent.KEY_DOWN,onDown);
 }
 
}

And thst is the code that I have removed all the things I have experimented out. Only the code that is working is shown above.

I don't need them all to be played before start new random. Just That, it shouldn't play the same vdo that is playing at the moment when I click any button after.

FYI,I will add more vdos, about 20, and more keyboard buttons to click as the same numbers.

Anyone? **Pleaseeeeeeee >///<