XSL cutomization question: how to generate text for <section id='x'><title>text</title></section>

[Taro Ikai <tikai@ABINITIO.COM>]

I am trying to understand how to customize the generation of text for 
a xref to a <section>. My reference looks like:

  <xref linkend='foo'/> 

and the element pointed to looks like:

 <section id='foo'><title>Text I want to get out is 
here</title></section>.

I followed docbook-xsl/html/xref.xsl to the following block:

<xsl:template match="section|simplesect
                     |sect1|sect2|sect3|sect4|sect5
                     |refsect1|refsect2|refsect3" mode="xref-to">
  <xsl:param name="referrer"/>
  <xsl:param name="xrefstyle"/>

  <xsl:apply-templates select="." mode="object.xref.markup">
    <xsl:with-param name="purpose" select="'xref'"/>
    <xsl:with-param name="xrefstyle" select="$xrefstyle"/>
    <xsl:with-param name="referrer" select="$referrer"/>
  </xsl:apply-templates>
  <!-- FIXME: What about "in Chapter X"? -->
</xsl:template>


But I don't understand which template 

  <xsl:apply-templates select="." mode="object.xref.markup">

then matches.

-Taro