AYUdA CON EL CODIGO - REPROD MP3EN FLASH

hola, tengo el siguiente codigo, de una plantilla, y no logro que me reproduzca la siguiente pista cuando termina la primera. si lo hace cuando actualizo el navegador. pero quisiera que cuando estas navegando la pagina termine una cancion y comience otra.
GRACIAS POR LA AYUDA!

*/
// lets start by calling our config file
// create new xml object and load config.xml
var config:XML = new XML();
config.ignoreWhite = true;
// once the xml is loaded fire the loadConfig function
config.onLoad = loadConfig;
config.load("xml/musicPlayer/config.xml");
// on load of xml
function loadConfig(success:Boolean):Void {
if (success) {
// get our xml start point
var all:XMLNode = config.firstChild;
// retrieve all xml options
usePhp = Boolean(all.childNodes[0].firstChild.nodeValue);
buffTime = Number(all.childNodes[1].firstChild.nodeValue);
recordVol = all.childNodes[2].firstChild.nodeValue;
playerAlpha = Number(all.childNodes[3].firstChild.nodeValue);
startCut = Number(all.childNodes[4].firstChild.nodeValue);
endCut = Number(all.childNodes[5].firstChild.nodeValue);
fadeInSpeed = Number(all.childNodes[6].firstChild.nodeValue);
fadeOutSpeed = Number(all.childNodes[7].firstChild.nodeValue);
bufferingMsg = all.childNodes[8].firstChild.nodeValue;
nowPlayingMsg = all.childNodes[9].firstChild.nodeValue;
offMsg = all.childNodes[10].firstChild.nodeValue;
msgTextColor = Number(all.childNodes[11].firstChild.nodeValue);
// now our config has loaded let build the player
buildMusicPlayer();
} else {
trace("XML NOT LOADED");
}
}
// import needed classes
import mx.transitions.Tween;
import mx.transitions.easing.*;
// lets hide everything until our config has loaded
player._visible = false;
function buildMusicPlayer() {
// we can now show the player and set its defaults
player._visible = true;
scope = this;
player.status.autoSize = "LEFT";
player.status.textColor = msgTextColor;
player.status.text = bufferingMsg;
player.playStop.playBtn._alpha = 0;
// if we are using the php lets load it
if (usePhp == true) {
buildMp3 = new XML();
buildMp3.load("php/buildMusicPlayer.php");
}
// create new xml object and load music.xml
var music:XML = new XML();
music.ignoreWhite = true;
// once the xml is loaded fire the buildPosts function
music.onLoad = buildposts;
music.load("xml/musicPlayer/songs.xml");
function buildposts(success:Boolean):Void {
if (success) {
// send width of player to our main movie, so we can position it accurately
_parent._parent.musicWidth = scope._width;
_parent._parent.setPostions();
// set up arrays to store song details
songPath = [];
songName = [];
// get xml start point
var allXML:XMLNode = music.firstChild;
// get song total
songTotal = allXML.childNodes.length;
// if there is only one song we need to bypass the random number generation
if (songTotal>0) {
var randNo:Number = Math.floor(Math.random()*songTotal);
} else {
randNo = 0;
}
// create new shared object to store previous random number
// we do this so the same song can`t be played twice in a row
so = SharedObject.getLocal("num");
//if shared object equals the new random number change random number.
if ((so.data["num"] == randNo)) {
if (so.data["num"]>1) {
randNo--;
} else {
randNo++;
}
}
// set new num to store in cookie.
so.data["num"] = randNo;
// extra each path and name and store in our arrays
for (i=0; i<songTotal; i++) {
songPath = allXML.childNodes.attributes.src;
songName = allXML.childNodes.childNodes[0];
}
// load our choosen song
loadSound(songPath[randNo]);
}
function loadSound(mp3) {
// set buffer time
_soundbuftime = buffTime;
// ceate new sound
snd = new Sound(scope);
// set streaming to true
snd.loadSound(mp3, true);
// set volume to 0
obj = new Object();
obj.vol = 0;
snd.setVolume(obj.vol);
snd.onLoad = function() {
snd.start();
// this where our song will now end
newEndPoint = snd.duration-endCut;
snd.setVolume(obj.vol);
};
}
scope.onEnterFrame = function() {
// get amount of song loaded
var amountLoaded = snd.getBytesLoaded()/snd.getBytesTotal();
// if loaded
if (amountLoaded == 1) {
// if we are going to store the on/off user choice
if (recordVol == "true") {
// cookie for storing volume level
so = SharedObject.getLocal("volume");
//if shared object has data already in it
if ((so.data["level"] != null)) {
// get saved level and fade in music
volStart = so.data["level"];
fadeSound(0, volStart, fadeInSpeed);
// if on, set defaults
if (volStart == 100) {
player.status.text = nowPlayingMsg+" "+songName[randNo];
isPlaying = true;
player.playStop.stopBtn._alpha = 100;
player.playStop.playBtn._alpha = 0;
// else set "off" defaults
} else {
player.status.text = offMsg;
isPlaying = false;
player.playStop.stopBtn._alpha = 0;
player.playStop.playBtn._alpha = 100;
}
}
// else if no cookie found set the "on" defaults
if ((so.data["level"] == null)) {
fadeSound(0, 100, fadeInSpeed);
player.status.text = nowPlayingMsg+" "+songName[randNo];
isPlaying = true;
player.playStop.stopBtn._alpha = 100;
player.playStop.playBtn._alpha = 0;
}
}
/* let grab the width the player now we have all the text in and update our main
movie positioning code.*/
_parent._parent.musicWidth = scope._width;
_parent._parent.setPostions();
// now we don`t need this onEnterframe so lets kill it
delete this.onEnterFrame;
}
};
// this function checks to see if the loop has reached it end (minus our endCut point)
// when the end is found, we go back to the start of the track (plus our startCut)
player.onEnterFrame = function() {
if (snd.position>newEndPoint) {
snd.stop();
snd.start(startCut/1000);
}
};
// set up sound object
// set default alpha level of player (everything)
player._alpha = playerAlpha;
// mute button
player.onRelease = function():Void {
faderSound.stop();
// if player is off
if (isPlaying == false) {
// fade in and set "on" state
fadeSound(obj.vol, 100, fadeInSpeed);
isPlaying = true;
player.status.text = nowPlayingMsg+" "+songName[randNo];
player.playStop.stopBtn._alpha = 100;
player.playStop.playBtn._alpha = 0;
// record volume to cookie
so.data["level"] = 100;
} else {
// fade out and set "off" state
fadeSound(obj.vol, 0, fadeOutSpeed);
isPlaying = false;
player.status.text = offMsg;
player.playStop.stopBtn._alpha = 0;
player.playStop.playBtn._alpha = 100;
so.data["level"] = 0;
}
// scale hitzone to text size
player.hitzone._width = player.status.textWidth;
// update main movie position code with new width
_parent._parent.musicWidth = player._width;
_parent._parent.setPostions();
};
// fade up on player mouse over
player.onRollOver = function():Void {
fade(this, this._alpha, 100, 1, "_alpha");
};
player.onRollOut = function():Void {
fade(this, this._alpha, playerAlpha, 1, "_alpha");
};
}
}
// fade sound function
function fadeSound(startVal, endVal, speed):Void {
faderSound = new Tween(obj, "vol", Strong.easeOut, startVal, endVal, speed, true);
faderSound.onMotionChanged = function() {
snd.setVolume(Math.round(obj.vol));
};
}
// fade mc`s
function fade(who:MovieClip, startvalue:Number, endvalue:Number, y_speed:Number, prop:String):Void {
var fader:Tween = new Tween(who, prop, Strong.easeOut, startvalue, endvalue, y_speed, true);
}