> David, give us a dynamic example.



<xsl:stylesheet
   version="1.0"
   xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
>
<xsl:output encoding="utf-8" indent="yes"/>


<xsl:key name="x" match="record/*" use="name()"/>

<xsl:template match="/">
<idsets>                                                                        
 <xsl:for-each
 select="/records/record/*[count(.|key('x',name())[1])=1]">
    <xsl:element name="{name()}List">
         <xsl:copy-of
select="/records/record/*[name()=name(current())]"/>
    </xsl:element>
</xsl:for-each>
</idsets>
</xsl:template>

</xsl:stylesheet>



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