convert vbscript function to javascript

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VBScript

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Hi Team,
I want to convert the following vbscript function to javascript.
I am reading a registry values in it. Some may say its not secure to read registry, I still want to read it.

<script type="text/vbscript">

  Function SayHello()
    MsgBox "Hello"

HKEY_LOCAL_MACHINE = "&H80000002"
uninstallRegKey = "SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall"
stdRegPro = "winmgmts:{impersonationLevel=impersonate}!\\\\.\\root\\default:StdRegProv"

Set objReg=GetObject(stdRegPro)

objReg.EnumKey HKEY_LOCAL_MACHINE, uninstallRegKey, arrSubKeys
MsgBox arrSubKeys

  End Function

</script>

Any help appreciated.

Thanks,
Lok..