flash加载xml到数组

//加载xml文件
var gameXml:XML = new XML();
gameXml.ignoreWhite = true;
//这里是为了忽略空白
filepath = "xml/";
gameXml.onLoad = function(success) {
parseXml(this);
};

gameXml.load(filepath+"myxml.xml");
function parseXml(obj:XML) {
var arr_xml:Array = obj.firstChild.childNodes;
var arr_id:Array = new Array();
var arr_url:Array = new Array();
var arr_vedio_url:Array = new Array();

for (var i:Number = 0; i<arr_xml.length; i++) {
trace(arr_xml[i].nodeName);//输出第二级节点

for (var j:Number = 0; j<arr_xml[i].childNodes.length; j++) {
arr_id = arr_xml[i].childNodes[j].attributes.id;
arr_url = arr_xml[i].childNodes[j].attributes.url;
arr_vedio_url[j] = arr_xml[1].childNodes[3].attributes.url;
var myurl:String=arr_vedio_url[j];
trace(myurl);

myMedia.stop();//停止组件初始地址flv播放
myMedia.play(myurl);//赋与新flv地址并播放
var myListener = new Object();