HTML div class element

gistfile1.xslt

<xsl:attribute name="class">
  <xsl:choose>
    <xsl:when test="count(/data/locations-all/entry) = 4 and position() = 4">
      <xsl:text>col-md-4 col-md-offset-4</xsl:text>
    </xsl:when>
    <xsl:when test="count(/data/locations-all/entry) = 5 and position() = 4">
      <xsl:text>col-md-4 col-md-offset-2</xsl:text>
    </xsl:when>
    <xsl:otherwise>
      <xsl:text>col-md-4</xsl:text>
    </xsl:otherwise>
  </xsl:choose>
</xsl:attribute>