Problems with using Interface Selectables

Problems with using Interface Selectables


Hello -
I am trying to implement the Selectables feature of the Interface
plugin and have been getting a javascript error on Firefox when trying
to use the callback - otherwise it works OK (although I have not been
able to layout my objects correctly yet).
The error is "a.get(0) has no properties", and has already been logged
in the bug database as a 'minor' bug. Unfortunately it is not minor
to me, as I need to update information about what items are
selected.
Does anyone have an idea about a work-around - any other way I could
get information about what items were selected?
Thanks for your time.
-Sara