Javascript to disable digital signatures

Hi,
Does anyone know of a javascript I can use to turn off the option to create a new digital signature ID in Acrobat 9? I would like for users to just be able to use a preset ID that i would provide for them, and not to be able to create a new ID. Any help would be appreciated.
Thanks,

Hi,
I dont know if you will get this reply, but is there a way to add this key by default for all users? Right now I have to set it up per user.
Thanks!

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