Suppressing source tree content

This seems like something I ought to know, but don't (and I can't find a
reference to it in the WD).

Is there any way to suppress nodes in the source tree so they're not copied
to the result? Assume a document something like this:

	<root>
		<elem1>...</elem1>
		<elem2>...</elem2>
	</root>

Can I transform this to a result like this:

	<root>
		<elem1>...</elem1>
	</root>

That is, *not* include elem2 in the result? (Assume there's a
default/built-in rule for the document as a whole.)

==========================================================
John E. Simpson            | The secret of eternal youth
simpson@xxxxxxxxxxx        | is arrested development.
http://www.flixml.org      |  -- Alice Roosevelt Longworth


 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list