best,
-Rob

I need help designing a couple of stylesheets that both transform similar
source types; the first stylesheet transforms the base type while the
second
stylesheet transforms an extension to this type.

The first stylesheet, a.xsl, provides the a-specific information.  It has
to be
independant of the second stylesheet, b.xsl, which provides the b-specific
information.  By definition, the second stylesheet, b.xsl, cannot provide
the a-
specific information.
<snip/>