How to swap an xml file when a button is clicked

1

hey everyone, i’m creating a music app where I have arranged different sounds in xml files. I have 16 buttons on stage that play a sound from my xml file. Is there a way to swap the active xml file at the click of a button for one with different sounds? here is my code so far:

var audioArray:Array = new Array();
var snd:Sound = new Sound();
var sc:SoundChannel = new SoundChannel();
var xmlLoader:URLLoader = new URLLoader();
var xmlData:XML = new XML();

function init():void {

xmlLoader.addEventListener(Event.COMPLETE, xmlLoaded);
xmlLoader.addEventListener(IOErrorEvent.IO_ERROR, xmlFailed);
xmlLoader.load(new URLRequest("synth1.xml"));

btn1.addEventListener(MouseEvent.CLICK, a);
btn2.addEventListener(MouseEvent.CLICK, b);
btn3.addEventListener(MouseEvent.CLICK, c);
btn4.addEventListener(MouseEvent.CLICK, d);
btn5.addEventListener(MouseEvent.CLICK, e);
btn6.addEventListener(MouseEvent.CLICK, f);
btn7.addEventListener(MouseEvent.CLICK, g);
btn8.addEventListener(MouseEvent.CLICK, h);
btn9.addEventListener(MouseEvent.CLICK, i);
btn10.addEventListener(MouseEvent.CLICK, j);
btn11.addEventListener(MouseEvent.CLICK, k);
btn12.addEventListener(MouseEvent.CLICK, l);
btn13.addEventListener(MouseEvent.CLICK, m);
btn14.addEventListener(MouseEvent.CLICK, n);
btn15.addEventListener(MouseEvent.CLICK, o);
btn16.addEventListener(MouseEvent.CLICK, p);

}

init();

function xmlLoaded(e:Event):void {
parseXML(new XML(e.target.data));
}

function xmlFailed(e:IOErrorEvent):void {
trace(“XML Failed”);
}

function parseXML(xml:XML):void {

for (var i:int=0; i<xml.SONG.length(); i++) {
    audioArray.push(xml.SONG*.@URL);
}

}

function a(e:MouseEvent):void {
playSound(1);
}

function b(e:MouseEvent):void {
playSound(2);
}

function c(e:MouseEvent):void {
playSound(3);
}
function d(e:MouseEvent):void {
playSound(4);
}

function e(e:MouseEvent):void {
playSound(5);
}

function f(e:MouseEvent):void {
playSound(6);
}
function g(e:MouseEvent):void {
playSound(7);
}

function h(e:MouseEvent):void {
playSound(8);
}

function i(e:MouseEvent):void {
playSound(9);
}
function j(e:MouseEvent):void {
playSound(10);
}

function k(e:MouseEvent):void {
playSound(11);
}

function l(e:MouseEvent):void {
playSound(12);
}
function m(e:MouseEvent):void {
playSound(13);
}
function n(e:MouseEvent):void {
playSound(14);
}

function o(e:MouseEvent):void {
playSound(15);
}

function p(e:MouseEvent):void {
playSound(16);
}

function playSound(num:Number):void {
sc.stop();
snd = new Sound();
snd.load(new URLRequest(audioArray[num]));
snd.addEventListener(IOErrorEvent.IO_ERROR, sndIOError);
snd.addEventListener(Event.COMPLETE, sndComplete);
}

function sndIOError(e:IOErrorEvent):void {
trace(“Error loading sound”);
}

function sndComplete(e:Event):void {
sc = snd.play();
}