Hi,

For something like the thing you want (linking to the next
div which may be in the body, the front or the back matter)
I've been doing:

<xsl:variable name="next">
<xsl:choose>
 <xsl:when test="following-sibling::div">
  <xsl:value-of
select="following-sibling::div[position()=1]/@id"/>
 </xsl:when>
 <xsl:when test="ancestor::front">
  <xsl:value-of
select="ancestor::front/following-sibling::body/child::div[position()=1]/@id"/>
 </xsl:when>
 <xsl:when test="ancestor::body">
  <xsl:value-of
select="ancestor::body/following-sibling::back/child::div[position()=1]/@id"/>
 </xsl:when>
 <xsl:when test="ancestor::back">
  <xsl:value-of
select="ancestor::back/preceding-sibling::front/child::div[position()=1]/@id"/>
 </xsl:when>
</xsl:choose>
</xsl:variable>

Followed by the code necessary to generate the actual link
to the div with @id attribute equal to the $next variable. 

Regards,
Peter


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