XPath expr on generated nodeset

I generated a nodeset by assigning elements to a variable and then converting
the fragment to a nodeset, but normal XPath expressions do not seem to work.
I would appreciate any help on figuring out what I am doing wrong. I am
using Xalan 2.4.0.
TIA
Al

<xsl:stylesheet exclude-result-prefixes="xalan" version="1.0"
  xmlns="automationgroups.com/docdebug"
  xmlns:xalan="http://xml.apache.org/xalan" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
  <xsl:template match="/">
    <xsl:variable name="aFrag">
      <xsl:element name="aaa">
        <xsl:element name="bbb">Stuff</xsl:element>
      </xsl:element>
    </xsl:variable>
    <xsl:variable name="aNd" select="xalan:nodeset($aFrag)"/>
    <xsl:element name="out">
    <!-- This generates output -->
      <xsl:element name="one">
        <xsl:copy-of select="$aNd[1]/*[1]"/>
      </xsl:element>
      <!-- but this does not -->
      <xsl:element name="two">
        <xsl:copy-of select="$aNd//bbb"/>
      </xsl:element>
    </xsl:element>
  </xsl:template>
</xsl:stylesheet>

Al Byers
Wasatch Automation Group, LLC
P.O. Box 1672
Orem, UT 84059
801.400.5111

byersa@xxxxxxxxxxxxxxxxxxxx
http://automationgroups.com/na/wasatch


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