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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=utf-8" />
<title>ajax </title>
<script src="../jquery-1.3.1.js"> </script>
<script>
    var xmlHttpReq = null;
function Ajax(){
    alert("1")
if(window.ActiveXObject){
    xmlHttpReq = new ActiveXObject("Microsoft.XMLHTTP");
}else if(window.XMLHttpRequest){
    xmlHttpReq = new XMLHttpRequest();
}
alert("2")
xmlHttpReq.open("GET","test.html",true);
xmlHttpReq.onreadystatechange = RequestCallBack;
xmlHttpReq.send(null);
alert("3") 
}
function RequestCallBack(){
    alert("4")
    if(xmlHttpReq.readyState == 4){
    alert("6")
    if(xmlHttpReq.staus == 200){
    alert("5")
    document.getElementById("resText").innerHTML = xmlHttpReq.responseText;
}
}
}
</script>


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check_SysState =0;
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