Implode by buzzomatic

utility.xsl

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
	<xsl:template name="implode">
		<xsl:param name="items" />
		<xsl:param name="separator" select="', '" />
		
		<xsl:for-each select="$items">
			<xsl:if test="position() &gt; 1">
				<xsl:value-of select="$separator" />
			</xsl:if>
			
			<xsl:value-of select="." />
		</xsl:for-each>
	</xsl:template>
</xsl:stylesheet>