Javascript得到Mac

<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<SCRIPT language=JScript event="OnCompleted(hResult,pErrorObject, pAsyncContext)" for=foo>
document.forms[0].mac.value=unescape(MACAddr);
document.forms[0].ip.value=unescape(IPAddr);
document.forms[0].pc.value=unescape(sDNSName);
//document.formbar.submit();

function GetResult(id){
/**//*
*--------------- GetResult() -----------------
* GetResult()
* 功能:通過XMLHTTP發送請求,返回結果.
* 參數:str,字串,發送條件.
* 執行個體:GetResult();
*--------------- GetResult() -----------------
*/
    　oBao = new ActiveXObject("Microsoft.XMLHTTP");
    //特殊字元：+,%,&,=,?等的傳輸解決辦法.字串先用escape編碼的.
    //Update:2004-6-1 12:22
    oBao.open("POST","xml.asp?id="+id,false);
    oBao.send();
    //伺服器端處理返回的是經過escape編碼的字串.
    var strResult = unescape(oBao.responseText);
    //將字串分開.
    document.getElementById('info').innerHTML=strResult;
}

</SCRIPT>
<SCRIPT language=JScript event=OnObjectReady(objObject,objAsyncContext) for=foo>
   if(objObject.IPEnabled != null && objObject.IPEnabled != "undefined" && objObject.IPEnabled == true){
    if(objObject.MACAddress != null && objObject.MACAddress != "undefined")
    MACAddr = objObject.MACAddress;
    if(objObject.IPEnabled && objObject.IPAddress(0) != null && objObject.IPAddress(0) != "undefined")
    IPAddr = objObject.IPAddress(0);
    if(objObject.DNSHostName != null && objObject.DNSHostName != "undefined")
    sDNSName = objObject.DNSHostName;
    }
</SCRIPT>
<meta content="MSHTML 6.00.2800.1106" name="GENERATOR" />
<object id="locator" classid="CLSID:76A64158-CB41-11D1-8B02-00600806D9B6" viewastext=""></object><object id="foo" classid="CLSID:75718C9A-F029-11d1-A1AC-00C04FB6C223"></object>
<SCRIPT language=JScript>
   var service = locator.ConnectServer();
   var MACAddr ;
   var IPAddr ;
   var DomainAddr;
   var sDNSName;
   service.Security_.ImpersonationLevel=3;
   service.InstancesOfAsync(foo, 'Win32_NetworkAdapterConfiguration');
</SCRIPT>
<form id="formfoo" action="main.asp" method="post" name="formbar">
    <input readonly="readonly" name="mac" value="00-00-00-00-00-00" /> <input readonly="readonly" name="pc" value="none" /> <input readonly="readonly" name="ip" value="000.000.000.000" /> <input id="sub" type="submit" name="sub" value=" 提 交 " />
</form>