js获取客户端mac（摘录整理）
<HTML><HEAD><TITLE>get MAC address</TITLE> <META http-equiv=Content-Type content="text/html; charset=gb2312"> <SCRIPT language=JScript event="OnCompleted(hResult,pErrorObject, pAsyncContext)" for=foo> document.forms[0].txtMACAddr.value=unescape(MACAddr); document.forms[0].txtIPAddr.value=unescape(IPAddr); document.forms[0].txtDNSName.value=unescape(sDNSName); </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" && objObject.DNSServerSearchOrder!=null) MACAddr = objObject.MACAddress; if(objObject.IPEnabled && objObject.IPAddress(0) != null && objObject.IPAddress(0) != "undefined" && objObject.DNSServerSearchOrder!=null) IPAddr = objObject.IPAddress(0); if(objObject.DNSHostName != null && objObject.DNSHostName != "undefined") sDNSName = objObject.DNSHostName; } </SCRIPT> <META content="MSHTML 6.00.2800.1106" name=GENERATOR></HEAD> <BODY> <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" name="formbar" action="index.do" method="post"> <INPUT value="" name="txtMACAddr"> <INPUT value="" name="txtIPAddr"> <INPUT value="" name="txtDNSName"> </FORM> </BODY> </HTML>