Selecting a group of elements

I'm trying to select a group of child elements like this:
<xsl:for-each select="from-children(a) or from-children(b) or
from-children(c)">

When I do this, I only get all of the "a" children.  I tried modifying this
to use "and" instead of "or", but this just resulted in an error.  Is there
any way to get XSL to give me a set that contains all of the a's, b's, _and_
c's?  Thanks for any help.

Tim McCune
Software Engineer, ChannelPoint
When I die, I want to go peacefully in my sleep like my grandfather did, and
not screaming like the rest of the people in his car.


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