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http://blog.sina.com.cn/s/blog_4a424eca010004jx.html

http://download.csdn.net/source/2154281

JScript code:

<script language="javascript">
var request = false;
//ʵÀý»¯XMLHttpRequest
function createXMLHttpRequest()
{
try
{
request = new ActivexObject("Msxml2.XMLHTTP");
}
catch(e1)
{
try
{
request = new ActivexObject("Microsoft.XMLHTTP");
}
catch(e2)
{
request = false;
}
}
if(!request && typeof XMLHttpRequest != 'undefined')
{
//·ÇIEÄÚºËä¯ÀÀÆ÷ʵÀý»¯XMLHttpRequestµÄ·½·¨
request = new XMLHttpRequest();
}
}

//·¢ËÍ¿Í»§¶ËÇëÇóµÄ·½·¨
function getServerTime(format)
{
//µ÷ÓÃÉÏÃæµÄ·½·¨ÊµÀý»¯XMLHttpRequest
createXMLHttpRequest();
//escape()¶ÔÌØÊâ×Ö·û½øÐÐתÒå
var url = "ServerTime.aspx?format="+escape(format);
//alert(url);
//ͨ¹ýGETµÄ·½Ê½´ò¿ªÇëÇ󣬵ÚÈý¸ö²ÎÊýture±íʾÒì²½·¢ËÍÇëÇó£¬false±íʾͬ²½
request.open("GET",url,true);
//µ±requestµÄµÈ´ý״̬·¢Éú±ä»¯Ê±ÒªÖ´ÐеĿͻ§¶Ë·½·¨
request.onreadystatec


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AjaxµÄÒ»¸öСÎÊÌâ - Java / Web ¿ª·¢

function callback(){
  if (req.readyState == 4){
  if(req.status == 200){
  var msg = req.responseXML.getElementsByTagName("msg")[0];
  // alert(msg.chil ......
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