variable with node in xsl:choose

Hello,

first thanks for your helpful reponse to my old question.
Now my new one:
I want to use a variable in a for:each... so it works fine:

<xsl:variable name="anzrows" select="//user/nokeyuser/name"/>
<xsl:for-each select="$anzrows">

But I want the select in the variable choosen by a condition like this:

<xsl:choose>
   <xsl:when test="$anznokeyuser > $anzkeyuser"><xsl:variable name="anzrows"
select="//user/nokeyuser/name"/></xsl:when>
   <xsl:otherwise><xsl:variable name="anzrows"
select="//user/keyuser/name"/></xsl:otherwise>
</xsl:choose>

I also tried it like this:

<xsl:variable name="anzrows">
<xsl:choose>
   <xsl:when test="$anznokeyuser >
$anzkeyuser">//user/nokeyuser/name</xsl:when>
   <xsl:otherwise>//user/keyuser/name</xsl:otherwise>
</xsl:choose>
</xsl:variable>

But this doesn't work because he can't convert #RTREEFRAG into NodeList.
Maybe you can help another time :)

Thanks,
Markus

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