_root.soundArray=[];
_root.soundArray=_root.playlist.split(",")
count=0;

var my_sound:Sound = new Sound();
my_sound.onSoundComplete = function() {
    if(count<_root.soundArray.length-1){        
        count++;
        my_sound.loadSound(soundArray[count], true);
    }else{
        count=0;
    }
}
my_sound.loadSound(soundArray[count], true);