close palette window button osx?

[Mark Swindell]

Is the small close window button used in palette windows available  
from within Rev, or does one have to build a facsimile oneself?  The  
one on the tools palette, for example... on mouseOver it changes to  
the red circle with the black x within.  I'd like to apply it to a  
faux window within a stack that's just a group with a field and a  
title bar.

Thanks
Mark