gistfile1.xml

<?xml version="1.0" encoding="ISO-8859-1"?>
<BK xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xsl:version="1.0">
  <xsl:for-each select="ONIXMessage/Product">
    <Book>
      <xsl:variable name="form" select="ProductFormDetail"/>
      <xsl:variable name="date" select="PublicationDate"/>
      <xsl:variable name="isbn" select="ProductIdentifier[ProductIDType = '15']/IDValue"/>
      <image href="file:///{$isbn}.jpg" />
      <year><xsl:value-of select="concat(substring($date,7,2), '/',substring($date,5,2), '/',substring($date,1,4))"/></year>
      <productid><xsl:value-of select="$isbn"/></productid>
      <format>
        <xsl:choose>
          <xsl:when test="$form = 'B104'">A Format Paperback</xsl:when>
           <xsl:when test="$form = 'B105'">B Format Paperback</xsl:when>
           <xsl:when test="$form = 'B106'">Trade paperback</xsl:when>
           <xsl:when test="$form = 'B304'">Full colour paperback</xsl:when>
           <xsl:when test="$form = 'B501'">Jacketed hardback</xsl:when>
           <xsl:when test="$form = 'B307'">Slipcase hardback limited edition with minted coin</xsl:when>
           <xsl:when test="$form = 'B221'">Full colour paperback</xsl:when>
           <xsl:when test="$form = 'B306'">Hardback Library edition</xsl:when>
           <xsl:otherwise>Unknown</xsl:otherwise>
        </xsl:choose>
      </format>
    </Book>	
  </xsl:for-each>
</BK>