Custom layer and Chunking problem

Hi, I'm trying to write a CSS to apply to the HTML generated by the docbook xslt. I want to be able to use ID classes for a finer grained control so I wrote a customization layer that puts the id attribute of my docbook elements into the class attribute of the HTML element. The layer looks like:

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
	<xsl:import href="../../docbook/docbook-xsl-1.62.0/html/chunk.xsl"/>
	
	<xsl:template match="section">
		<xsl:variable name="depth" select="count(ancestor::section)+1"/>
		<xsl:element name="div">
			<xsl:choose>
				<xsl:when test="@id">
					<xsl:attribute name="class"><xsl:value-of select="@id"/></xsl:attribute>
				</xsl:when>
				<xsl:otherwise>
					<xsl:attribute name="class"><xsl:value-of select="name(.)"/></xsl:attribute>
				</xsl:otherwise>
			</xsl:choose>
			<xsl:call-template name="language.attribute"/>
			<xsl:call-template name="section.titlepage"/>
			<xsl:variable name="toc.params">
				<xsl:call-template name="find.path.params">
					<xsl:with-param name="table" select="normalize-space($generate.toc)"/>
				</xsl:call-template>
			</xsl:variable>
			<xsl:if test="contains($toc.params, 'toc')  and $depth &lt;= $generate.section.toc.level">
				<xsl:call-template name="section.toc">
					<xsl:with-param name="toc.title.p" select="contains($toc.params, 'title')"/>
				</xsl:call-template>
				<xsl:call-template name="section.toc.separator"/>
			</xsl:if>
			<xsl:apply-templates/>
			<xsl:call-template name="process.chunk.footnotes"/>
		</xsl:element>
	</xsl:template>
</xsl:stylesheet>


My problems are: 1. I want to apply the same principle to any docbook elements, do i need to overwite every template? 2. When i use my layer, the processor does not chunk the document anymore. At run time I pass: saxon.extensions=1 use.extensions=1 draft.mode=no tablecolumns.extension=0 html.stylesheet=style.css to my Saxon 6.5.2 engine. Any help would be greatly apreciated. Thanks Alessandro