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$.ajax({
        type: "post",
        url: loginUrl,
        data: "username=" +uname + "&password=" +pwd,
        async: false,
        dataType: "json", //·µ»Øjson¸ñʽµÄÊý¾Ý
        cache: false,
        success: function(msg) {
            if (msg != null) {
               alert(msg.script);
               $("#test").html(decodeURIComponent(msg.script));
               
            }
            else {
              
            }
        },
        error: function(msg) {
           alert(msg);
        }
    });


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дһ¸öajax funciton

function Ajax(url)
{
var m_xmlReq=null;
if(window.ActiveXObject)
{
try
{
m_xmlReq = new ActiveXObject('Msxml2.XMLHTTP');
}
catch(e)
{
try{m_xmlReq = new ActiveXObject('Microsoft.XMLHTTP');}catch(e){}
}
}
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<script type="text/javascript">
function ajaxFunction()
{
var xmlHttp;
try
    {
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