table sort

Given a simple table like the one below,
I need to copy it, with the content sorted by the first entry.

I *thought* it should work using an identity stylesheet,

with 

<xsl:template match="tbody">
  <tbody>
   <xsl:apply-templates>
    <xsl:sort select="row/entry[1]/para"/>
   </xsl:apply-templates>
  </tbody>
</xsl:template>

but it only works with
   <xsl:sort/>

I.e. taking the default, the content of the current node,
which in this case is what I want (plus a bit).
  Why can't the sort key be further down the tree?

I really don't understand why.
Can anyone offer enlightenment please.

regards DaveP


  <?xml version="1.0" ?> 
 <table >
 <title>Properties</title> 
 <tgroup cols="3">
 
  <tbody>
   <row>
 <entry>
     <para>A</para> 
    </entry>
    <entry>
     <para>content A</para> 
    </entry>
    <entry /> 
   </row>
   <row>
    <entry>
     <para>X</para> 
    </entry>
    <entry>
     <para>content X</para> 
    </entry>
    <entry /> 
   </row>
   <row>
    <entry>
     <para>C</para> 
    </entry>
    <entry>
     <para>content C</para> 
    </entry>
    <entry /> 
   </row>
   <row>
    <entry>
     <para>D</para> 
    </entry>
    <entry>
     <para>Content D</para> 
    </entry>
    <entry /> 
   </row>
  
  </tbody>
  </tgroup>
  </table>
Regards DaveP.

**** snip here *****

- 

NOTICE: The information contained in this email and any attachments is 
confidential and may be legally privileged. If you are not the 
intended recipient you are hereby notified that you must not use, 
disclose, distribute, copy, print or rely on this email's content. If 
you are not the intended recipient, please notify the sender 
immediately and then delete the email and any attachments from your 
system.

RNIB has made strenuous efforts to ensure that emails and any 
attachments generated by its staff are free from viruses. However, it 
cannot accept any responsibility for any viruses which are 
transmitted. We therefore recommend you scan all attachments.

Please note that the statements and views expressed in this email 
and any attachments are those of the author and do not necessarily 
represent those of RNIB.

RNIB Registered Charity Number: 226227

Website: http://www.rnib.org.uk 

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