Conditional Include statements

Hi

In a stylesheet I have...

<xsl:stylesheet version="1.0" xmlns:msxsl="urn:schemas-microsoft-com:xslt"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
                <xsl:output method="text" encoding="ISO-8859-1"></xsl:output>
<!--Note method is text here-->
               
<
<xsl:include href="HLP xxx.xslt"/>
...

But is it possible that I can put this include statement within a Template
match, based upon some variable value?

Tony