Validate NMTOKEN in JS? (was: Re: [xml-dev] JS implementation ofWAX)



Just started patching up a JS implementation and was wondering if 
someone has an NMTOKEN validation function handy...

Cheers,

Manos

References:
- wax - writing api for xml
  - From: "Andrew Welch" <andrew.j.welch@gmail.com>
- Re: [xml-dev] wax - writing api for xml
  - From: Chin Chee-Kai <cheekai@softml.net>
- JS implementation of WAX (was: Re: [xml-dev] wax - writing api forxml)
  - From: Manos Batsis <manos_lists@geekologue.com>