XSLT Question

[pemadorje]

Can anyone help me with a quick question? I am trying capture the first and last iteration of a repeating element. I am using the xsl:value-of select, how can I select only the first and last occurence?

Many thanks,
-d

<xsl:for-each select="details/po">
     <tr>
          <td><xsl:value-of select="po"/></td>
     </tr>
</xsl:for-each>

[DAnne]

you can try

<xsl:value-of select="po = position()=[1]"/> 
and 
 <xsl:value-of select="po=position()=last()"/>