lfs-book/stylesheets/lfs-xsl/docbook-xsl-1.78.1/params/htmlhelp.default.topic.xml

<refentry xmlns="http://docbook.org/ns/docbook"
          xmlns:xlink="http://www.w3.org/1999/xlink"
          xmlns:xi="http://www.w3.org/2001/XInclude"
          xmlns:src="http://nwalsh.com/xmlns/litprog/fragment"
          xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
          version="5.0" xml:id="htmlhelp.default.topic">
<refmeta>
<refentrytitle>htmlhelp.default.topic</refentrytitle>
<refmiscinfo class="other" otherclass="datatype">string</refmiscinfo>
</refmeta>
<refnamediv>
<refname>htmlhelp.default.topic</refname>
<refpurpose>Name of file with default topic</refpurpose>
</refnamediv>

<refsynopsisdiv>
<src:fragment xml:id="htmlhelp.default.topic.frag">
<xsl:param name="htmlhelp.default.topic"></xsl:param>
</src:fragment>
</refsynopsisdiv>

<refsection><info><title>Description</title></info>

<para>Normally first chunk of document is displayed when you open HTML
Help file. If you want to display another topic, simply set its
filename by this parameter.</para>

<para>This is useful especially if you don't generate ToC in front of
your document and you also hide root element in ToC. E.g.:</para>

<programlisting>&lt;xsl:param name="generate.book.toc" select="0"/&gt;
&lt;xsl:param name="htmlhelp.hhc.show.root" select="0"/&gt;
&lt;xsl:param name="htmlhelp.default.topic">pr01.html&lt;/xsl:param>
</programlisting>

</refsection>
</refentry>