XML 형식의 데 이 터 를 Ajax 로 읽 습 니 다.

html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"  
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> 
<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(" !"); 
    } 


function handleStateChange(){     
    if(xmlHttp.readyState == 4){         
        if (xmlHttp.status == 200 || xmlHttp.status == 0){ 
            //  XML DOM  
            var xmlDOM = xmlHttp.responseXML; 
            //  XML  
            var root = xmlDOM.documentElement;             
            try 
            { 
                //  <info>  
                var info = root.getElementsByTagName('info'); 
                //   
                alert("responseXML's value: " + info[0].firstChild.data); 
            }catch(exception) 
            { 

            } 
        } 
    } 

</script> 
</head> 
<body> 
    <div> 
        <input type="button" value="return ajax responseXML's value" 
                onclick="startRequest();" /> 
    </div> 
</body> 
</html>
server.xml

<?xml version="1.0" encoding="GB2312" ?> 
<root>
    <info>hello world!</info>
</root>

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