<xsl:when test="$item/@control='image_hyperlink'">
  <!-- display this as a hyperlink around an image -->
  <xsl:call-template name="hyperlink">
  <xsl:with-param name="item"        select="$item"/>
  <xsl:with-param name="image"      select="$item/@image"/>
  <xsl:with-param name="imagewidth"  select="$item/@imagewidth"/>
  <xsl:with-param name="imageheight" select="$item/@imagegeight"/>
  </xsl:call-template>
</xsl:when>