xsl:script with JavaScript

<?xml version="1.0"?>
<xsl:stylesheet version="1.1"
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
  xmlns:date="http://www.cafeconleche.org/ns/date"
>

  <xsl:template match="/">
    <xsl:value-of select="date:clock()"/>
  </xsl:template>

  <xsl:script
    implements-prefix="date"
    language="javascript">
    
    function clock() {
      var time = new Date();
      var hours = time.getHours();
      var min = time.getMinutes();
      var sec = time.getSeconds();
      var status = "AM";
      if (hours > 11) {
        status = "PM";
      }
      if (hours < 11) {
        hours -= 12;
      }
      if (min < 10) {
        min = "0" + min;
      }
      if (sec < 10) {
        sec = "0" + sec;
      }
      return hours + ":" + min + ":" + sec + " " + status;
   }
   
  </xsl:script>  

</xsl:stylesheet>