Get MAC address in JS

Function  Macinfo (){  VaR Locator = New Activexobject ("wbemscripting. swbemlocator" );  VaR Service = locator. connectserver ("." );  VaR Properties = service. execquery ("select * From win32_networkadapterconfiguration where ipenabled = true" );  VaR E = New Enumerator (properties );{  VaR P = E. Item ();  VaR MAC = P. macaddress; document. getelementbyid ( "<% = Hd_macaddress.clientid %>"). value = Unescape (MAC );}} 

There are other methods:

<Script language = JScript event = "oncompleted (hresult, perrorobject, pasynccontext )" For = Foo> Document. getelementbyid ( "Txtmacaddr"). value =Unescape (macaddr); document. getelementbyid ( "Txtipaddr"). value = Unescape (ipaddr); document. getelementbyid ( "Txtdnsname"). value = Unescape (sdnsname );  //  Document. formbar. Submit (); </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> <Object ID = "fool" 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 = Fool. connectserver ();  VaR  Macaddr;  VaR  Ipaddr;  VaR Domainaddr;  VaR  Sdnsname; service. Security _. impersonationlevel = 3 ; Service. instancesofasync (Foo, 'Win32 _ networkadapterconfiguration' ); </SCRIPT>