<html> <head> <title>Ajax Hello World</title> 
<script type="text/javascript"> 
var xmlHttp; function createXMLHttpRequest()
{ 
if(window.ActiveXObject) { xmlHttp = new ActiveXObject("Microsoft.XMLHTTP"); 
} else if(window.XMLHttpRequest) { xmlHttp = new XMLHttpRequest(); } } function startRequest(){ createXMLHttpRequest(); try { xmlHttp.onreadystatechange = handleStateChange; xmlHttp.open("GET", "data.xml", true); xmlHttp.send(null); } catch(exception) { alert("您要访问的资源不存在!"); } } function handleStateChange(){ if(xmlHttp.readyState == 4) { if (xmlHttp.status == 200 || xmlHttp.status == 0) { // 取得XML的DOM对象 var xmlDOM = xmlHttp.responseXML; // 取得XML文档的根 //var res=document.getElementById("res"); //res.innerHTML=xmlDOM.documentElement; var root = xmlDOM.documentElement; try { // 取得<info>结果 var info = root.childNodes; // 显示返回结果 for(var i=0;i<info.length;i++)//遍历输出 alert("responseXML's value: " + info[i].text); } catch(exception) { } } } 
}</script></head><body><div><input type="button" value="return ajax responseXML's value" onclick="startRequest();" /> </div><div id="res"></div></body></html> <?xml version="1.0" encoding="GB2312" ?> <root> fff<info>hello world!</info> <goods>hello1</goods><goods>hello2</goods></root> 
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