Retrieve List of Array Properties?

[Scott Rossi]

If I set some custom properties of an object via an array:

  set the specialData["cool"] of fld 1 to "hello"
  set the specialData["hot"] of fld 1 to "world"

...how do I retrieve a list of the custom property names (are these called
"indexes"?) of the object?  ("cool", "hot", etc)

I've been through the keys(), customKeys, customProperties, etc entries in
the docs and can't seem to get my head around how this works.

Thanks & Regards,

Scott Rossi
Creative Director
Tactile Media, Multimedia & Design
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E: scott at tactilemedia.com
W: http://www.tactilemedia.com