Paul Essex wrote:

> [...] 
> Take a look at page 367 in Michael Kay's XSLT book.  The very 
> last entry in
> the Examples table shows this method of determining whether a node's
> position is even:
> 
> item[position() mod 2 = 0]
> 
> Use this in an xsl:when test something like this:
> 
> <xsl:choose>
>   <xsl:when test="Summary[position() mod 2 = 0]>
>     <xsl:call-template name="bgcolorgrey"/>
>   </xsl:when>
>   <xsl:otherwise>
>     <xsl:call-template name="bgcolorwhite"/>
>   </xsl:otherwise>
> </xsl:choose>

   I think I'd use stylesheets. Then, your could do something like
<tr>
  <xsl:choose>
   <xsl:when test="Summary[position() mod 2 = 0]>
     <xsl:attribute name="class"/>bgcolourblack</xsl:attribute>
   </xsl:when>
   <xsl:otherwise>
     <xsl:attribute name="class"/>bgcolourblack</xsl:attribute>
   </xsl:otherwise>
 </xsl:choose>
 <!-- all the other stuff for the row -->
</tr>

- Joerg




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