as3.0 xml加载图片，怎么点击显示图片说明

as3.0 xml加载图片，如何点击显示图片说明
as3.0 用xml载入图片，不知道怎么在鼠标点击图片时获得xml中的其他数据


//图片信息数组
var pictureBox:Array = new Array();

//图片数组
var pictures:Array = new Array();

var imgxml:XML=new XML();
var xmlLoader:URLLoader=new URLLoader();
xmlLoader.load(new URLRequest("imgList.xml"));
xmlLoader.addEventListener(Event.COMPLETE,xmlComplete);

function xmlComplete(event:Event):void{
  imgxml=XML(xmlLoader.data);
  for (var i:uint=0; i<imgxml.product.length(); i++) {
  var pictureObj:Object = new Object();
  pictureObj.imgSrc = imgxml.product[i].img;
  pictureObj.imgText = imgxml.product[i].text;
  pictureBox.push(pictureObj);
  }
  showImages();
}

function showImages():void{
  for(var i:uint=0; i<pictureBox.length; i++){
  //加载图片
  var imgLoader:Loader = new Loader();
  addChild(imgLoader);
  imgLoader.load(new URLRequest(pictureBox[i].imgSrc));
  pictures.push(imgLoader);
  pictures[i].x=i%5*150;
  pictures[i].y=int(i/5)*155;
  pictures[i].addEventListener(MouseEvent.CLICK, pictureClick);
  }
}

function pictureClick(event:MouseEvent):void{
  //如何在这里trace图片说明
}


<?xml version="1.0" encoding="utf-8" ?> 
<products>
<product>
<text>产品001</text> 
<img>images/001.jpg</img> 
</product>

<product>
<text>产品002</text> 
<img>images/002.jpg</img> 
</product>

<product>
<text>产品003</text> 
<img>images/003.jpg</img> 
</product>
</products>

[解决办法]
通过获取当前Image的URI地址与数组存取的地址进行比对，如果相同则输出平配对imageText值！

XML code

function pictureClick(event:MouseEvent):void{  var currentImageURI:String = (event.currentTarget as Image).source.toString();                for(var i:uint=0; i<pictureBox.length; i++){                                        if(pictureBox[i].imgSrc == currentImageURI)                    {                        trace(pictureBox[i].imgText);                    }                }}