js调用activeX获取u盘序列号的代码

function GetDIVORPIV(DIV) 
{ 
var str; 
var arrayDIV=new Array(); 
if(DIV.indexOf("_")>0) 
{ 
arrayDIV=DIV.split("_"); 
str=arrayDIV[1]; 
} 
else 
{ 
str=""; 
} 
return str; 
} 
function GetDIVandPIV(DIVPIV) 
{ 
var strDIVandPIV; 
var strDIVPIV=DIVPIV; 
var arrayDIVPIV=new Array(); 
if(strDIVPIV.indexOf("&")>0) 
{ 
arrayDIVPIV=strDIVPIV.split("&"); 
strDIVandPIV=GetDIVORPIV(arrayDIVPIV[0])+GetDIVORPIV(arrayDIVPIV[1]); 
} 
else 
{ 
strDIVandPIV=""; 
} 
return strDIVandPIV; 
} 
function GetUsbSN(DIVPIVSN) 
{ 
var UsbSN; 
var strSN=DIVPIVSN ; 
var arraySN=new Array(); 
if(strSN.indexOf("&")>0) 
{ 
arraySN=strSN.split("\\"); 
if(arraySN.length>2) 
{ 
UsbSN=GetDIVandPIV(arraySN[1])+arraySN[2]; 
} 
else 
{ 
UsbSN=""; 
} 
} 
else 
{ 
UsbSN=""; 
} 
return UsbSN; 
} 
function CheckUsb() 
{ 
var e,x; 
var ForReading = 1,RorWriting = 2; 
var fso = new ActiveXObject("Scripting.FileSystemObject"); 
var bfResult=false ; 
e = new Enumerator(fso.Drives) 
for(;!e.atEnd();e.moveNext()) 
{ 
x=e.item(); 
if(x.DriveType==1) 
{ 
if(x.Path!="A:") 
{ 
bfResult=true ; 
} 
} 
} 
return bfResult; 
} 
function ReadUsbSN() 
{ 
var bfUsb; 
bfUsb=CheckUsb(); 
if(bfUsb==true) 
{ 
var locator = new ActiveXObject ("WbemScripting.SWbemLocator"); 
var computer = locator.ConnectServer("."); 
var properties = computer.ExecQuery("SELECT * FROM Win32_USBHub"); 
var e = new Enumerator (properties); 
var arrayUsbSN=new Array();//存放序列号 
var intCount=0; 
for (;!e.atEnd();e.moveNext ()) 
{ 
var p = e.item (); 
var strSN; 
var uSerialNum; 
var sn=p.DeviceID 
if(sn.indexOf("VID")>0) 
{ 
strSN=GetUsbSN(sn); 
uSerialNum=strSN.substring(8); 
arrayUsbSN[intCount]=strSN; 
intCount=intCount+1; 
alert("你的U盘系列号为："+ uSerialNum); 
} 
} 
} 
else 
{ 
alert("请插入U盘"); 
} 
}