sort-events.xml

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0" xmlns:xhtml="http://www.w3.org/1999/xhtml">
  <xsl:template match="@*|node()">
    <xsl:copy>
      <xsl:apply-templates select="@*|node()"/>
    </xsl:copy>
  </xsl:template>

  <xsl:template match="xhtml:head">
    <xsl:copy>
      <xsl:apply-templates select="@*|node()"/>
    </xsl:copy>
  </xsl:template>
  
  <!-- Create the event listing by grabbing items from the un-ordered list generated using Velocity. -->
  <xsl:template match="xhtml:div[@data-type='events']">
    <xsl:copy>
      <xsl:apply-templates select="@*"/>
      <xsl:variable name="dataLimit">
        <xsl:choose>
          <xsl:when test="@data-limit != ''"><xsl:value-of select="@data-limit"/></xsl:when>
          <xsl:otherwise/>
        </xsl:choose>
      </xsl:variable>

      <xsl:apply-templates mode="eventsList" select="xhtml:p">
        <!-- Sort the items -->
        <xsl:sort order="ascending" select="@data-timestamp"/>
        
        <!-- Pass the limit, this needs to be done after the sorting, so pass it into the item template. -->
        <xsl:with-param name="dataLimit" select="$dataLimit"/>
      </xsl:apply-templates>
    </xsl:copy>
  </xsl:template>
   
  <!-- Display the item -->
  <xsl:template match="xhtml:p" mode="eventsList">
    <xsl:param name="dataLimit"/>
    
    <!-- Make sure the item falls within the  limit, if one exists. -->    
    <xsl:if test="$dataLimit='' or position() &lt;= number($dataLimit)">
      <xsl:copy-of select="."/>
    </xsl:if>
  </xsl:template>
</xsl:stylesheet>