<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="overlay"> <refmeta> <refentrytitle>overlay</refentrytitle> <refmiscinfo class="other" otherclass="datatype">boolean</refmiscinfo> </refmeta> <refnamediv> <refname>overlay</refname> <refpurpose>Overlay footer navigation?</refpurpose> </refnamediv> <refsynopsisdiv> <src:fragment xml:id="overlay.frag"> <xsl:param name="overlay" select="0"/> </src:fragment> </refsynopsisdiv> <refsection><info><title>Description</title></info> <para>If non-zero, JavaScript is added to the slides to make the bottom navigation appear at the bottom of each page. This option and <link linkend="multiframe">multiframe</link> are mutually exclusive.</para> <para>If this parameter is zero, the bottom navigation simply appears below the content of each slide.</para> </refsection> </refentry>