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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>ÎÞ±êÌâÎĵµ </title>
<script language="javascript">
var xmlHttpRequest;
function createXMLHttpRequest()
{

if(window.ActiveXObject)
{
                  return new ActiveXObject("Microsoft.XMLHTTP");
}else
{
    return new XMLHttpRequest();
}
}


function checkUserName(){

createXMLHttpRequest();

        xmlHttpRequest.open("GET","1.aspx",true);
        alert("dddd");
xmlHttpRequest.onreadystatechange=function()
{
  if(xmlHttpRequest.readyState == 4 && xmlHttpRequest.status==200)///status--%>
            alert("·þÎñÆ÷·µ»Ø"+xmlHttpRequest.responseText);
          }
xmlHttpRequest.send(null);
}


</script>
</head>



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<script type="text/javascript">
// <![CDATA[
Sys.Application.initialize();
Sys.Application.add_init(function() {
    $create(Sys.UI._Upd ......

AjaxÓëSessionµÄÎÊÌâ - .NET¼¼Êõ / ASP.NET

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var xmlHttp = null;
function Getxmlhttp()
{
var url = "update.php";

if (xmlHttp == null)
{
xmlHttp=GetXmlHttpObject();
  if (xmlHttp==null)
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ajax È¡²»µ½Êý¾Ý

http://localhost:8080/xx/zz.do  ÏÔʾ outµÄ xml Êý¾Ý

xml.open("GET",arguments[0],true);// arguments[0]ÊÇ /xx/zz.do

xml.send();

alert(arguments[0]);//Õâ±ßÓÐ

x ......
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