Crosslinks in Header and Footer

In Makefile .nw, we specify the next option to TEX4ht via the variable HTLATEXARGS . That makes the “next” button to jump linearly through the text in contrast to the section-wise default.

The following code generates a “Home” button (crosslinks+), provides three navigation buttons (crosslink*), and configures the buttons in such a way that they will not disappear when inactive (crosslinks-).

336⟨4ht crosslinks 336⟩≡   (331)
\Configure{crosslinks+}
   {\IgnorePar\EndP
     \HCode{%
            <div class="crosslinks"><p class="noindent">%
            <a target="\string_top" href="\projectname.html">[Home]</a> }}
   {\ \ \ \ ((\currentfile))\HCode{</p></div>}%
     \xdef\@currentfile{\currentfile}\par\ShowPar}
   {\IgnorePar\EndP
     \HCode{%
            <div class="crosslinks"><p class="noindent">%
            <a target="\string_top" href="\projectname.html">[Home]</a> }}
   {\ \ \ \ ((\@currentfile))\HCode{</p></div>}\par\ShowPar}
\Configure{crosslinks*}{prev}{up}{next}{}
\Configure{crosslinks-}{[}{]}

Uses currentfile 228a, html 380, and projectname 127.

27.2 Crosslinks in Header and Footer