Text scroller help [AS2]

[Bob_Omb]

Hi!
I need help with my code to my scroll list. What it does now is to just play the first song who comes in and then stops, and I got 12 songs total. What I want it to do is also when I click on a song at the list is to select that song and then play it. But instead of doing this know, I only got invalid things.

// Setup sound object
var s:Sound = new Sound();
s.onSoundComplete = playSong;
s.setVolume(75);
// Array of songs
var sa:Array = new Array();

// Currently playing song
var cps:Number = -1;

// Position of music
var pos:Number;

// Load the songs XML
var xml:XML = new XML();
xml.ignoreWhite = true;
xml.onLoad = function()
{
   var nodes:Array = this.firstChild.childNodes;
   for(var i=0;i<nodes.length;i++)
   {
      sa.push(new Song(nodes*.attributes.url, nodes*.attributes.artist, nodes*.attributes.track));
   }
   playSong();
}

xml.load("songs.xml");

// Play the MP3 File
function playSong():Void
{
   s = new Sound();
   s.onSoundComplete = playSong;
   s.setVolume(75);
   mute.gotoAndStop("on");
   if(cps == sa.length - 1)
   {
      cps = 0;
      s.loadSound(sa[cps].earl, true);
   }
   else
   {
      s.loadSound(sa[++cps].earl, true);
   }
   trackInfo.text = sa[cps].artist + " - " + sa[cps].track;
   playPause.gotoAndStop("pause");
   textPos = 0;
}

// Pauses the music
function pauseIt():Void
{
   pos = s.position;
   s.stop();
}

// Unpauses the music
function unPauseIt():Void
{
   s.start(pos/1000);
}

// Music Controls

// Play/Pause Toggle
playPause.onRollOver = function()
{
   if(this._currentframe == 1) this.gotoAndStop("pauseOver");
   else this.gotoAndStop("playOver");
}

playPause.onRollOut = playPause.onReleaseOutside = function()
{
   if(this._currentframe == 10) this.gotoAndStop("pause");
   else this.gotoAndStop("play");
}

playPause.onRelease = function()
{
   if(this._currentframe == 10)
   {
      this.gotoAndStop("playOver");
      this._parent.pauseIt();
   }
   else
   {
      this.gotoAndStop("pauseOver");
      this._parent.unPauseIt();
   }
}

// Stop
Bstop.onRollOver = function()
{

   this.gotoAndStop("stopOver");
   
}

Bstop.onRollOut = Bstop.onReleaseOutside = function()
{
   this.gotoAndStop("stop");
}

Bstop.onRelease = function()
{
   pos = 0;
   s.stop();
   _parent.playPause.gotoAndStop("stop");
}

// Next Button
next.onRollOver = function()
{
   this.gotoAndStop("nextOver");
}

next.onRollOut = next.onReleaseOutside = function()
{
   this.gotoAndStop("next");
}

next.onRelease = function()
{
   this._parent.playSong();
}

// Prev Button
prevBtn.onRollOver = function()
{
   this.gotoAndStop("backOver");
}

prevBtn.onRollOut = prevBtn.onReleaseOutside = function()
{
   this.gotoAndStop("back");
}

prevBtn.onRelease = function() {
     

    cps -=2;
     if (cps < 0 ) {
          cps = sa.length - cps;
     }
     playSong();
    }

// Mute Button
mute.onRollOver = function()
{
   if(this._currentframe == 1) this.gotoAndStop("onOver");
   else this.gotoAndStop("offOver");
}

mute.onRollOut = mute.onReleaseOutside = function()
{
   if(this._currentframe == 10) this.gotoAndStop("on");
   else this.gotoAndStop("off");
}

mute.onRelease = function()
{
   if(this._currentframe == 10)
   {
      this.gotoAndStop("offOver");
      s.setVolume(0);
   }
   else
   {
      this.gotoAndStop("onOver");
      s.setVolume(75);
   }
}

//Text scroller

var size:Number = 20;
var textPos:Number = 0;
var intervalID:Number = setInterval(scroller, 500);

function scroller():Void
{
   var t:String = (sa[cps].artist + " - " + sa[cps].track);
   if(textPos+size < t.length)
   {
      textPos++;
      trackInfo.text = (sa[cps].artist + " - " + sa[cps].track).substring(textPos, textPos+size);
   }
   else 
   {
      clearInterval(intervalID);
      intervalID = setInterval(scroller2, 500);
   }
}

function scroller2():Void
{
   var t:String = (sa[cps].artist + " - " + sa[cps].track);
   if(textPos > -1)
   {
      textPos--;
      trackInfo.text = (sa[cps].artist + " - " + sa[cps].track).substring(textPos, size);
   }
   else 
   {
      clearInterval(intervalID);
      intervalID = setInterval(scroller, 500);
   }
}

//Scroll List

//var vlist:XML = new XML();
//vlist.ignoreWhite = true;

//vlist.onLoad = function() {
//   var videos:Array = this.firstChild.childNodes;
//   for(i=0;1<videos.length;i++) {
//      trackInfo.addItem(videos*.attributes.desc,videos*.attributes.url);
//   }
   
//   ns.play(videoList.getItemAt(0).data);
//   Lista.Lista.selectedIndex = 0;
//}

var songListner:Object  = new Object();
songListner.change = function() {
   playSong()
   trace(Lista.Lista.getItemAt(videoList.selectedIndex).data)
   cps = Lista.Lista.getItemAt(videoList.selectedIndex).data;
}

   Lista.Lista.addEventListener("change",songListner);
   
//   vlist.load("songs.xml");