</copyright>
</bookinfo>
-<preface><title>Introduction</title>
+<preface id="intro"><title>Introduction</title>
<para>This is reference documentation for all user-configurable
parameters in the DocBook XSL Website stylesheets (for generating
output from DocBook Website documents).</para>
</preface>
-<reference>
+<reference id="params">
<title>Parameters</title>
<refentry id="header.hr">
</refentry>
</reference>
-<appendix><title>The Stylesheet</title>
+<appendix id="stylesheet"><title>The Stylesheet</title>
<para>The <filename>param.xsl</filename> stylesheet is just a wrapper
around all these parameters.</para>