Using Javascript in Saxon

Hi,

I'm trying to get the Saxon to use javascript in the XSL. I know this can be achieved in Xalan but I'm having difficulty to get it to work in Saxon. Does it requies BSF and Rhino setup on my local? I have them in my classpath but it is still not working. The following is the code I use. Have anybody done this before? Really appreciate for any suggestion. Thanks!

o.s

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<?xml version='1.0'?>
<xsl:stylesheet version="1.0"
      xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
      xmlns:saxon="http://icl.com/saxon"
      extension-element-prefixes="test saxon">

<saxon:script language="javascript" implements-prefix="test" src="com.ibm.bsf.engines.javascript.JavaScriptEngine">
   function greetings(user)
   {
      return "Welcome to xxx " + user;
   }
</saxon:script>

<xsl:template match="/">
   <xsl:value-of select="test:greetings('Mr. Bean')"/>
</xsl:template>

</xsl:stylesheet>

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