thing.cfg

\Preamble{xhtml}

% Enable png graphics in html.
\Configure{graphics*}
  {png}
  {%
    \Picture[pict]{\csname Gin@base\endcsname .png
              \space width="\expandafter\the\csname Gin@req@width\endcsname"
    }%
  }

% Number paragraphs.
\setcounter{secnumdepth}{4}

% Make a TOC in sections for subsection, subsubsection, and paragraph.
\TocAt{section,subsection,subsubsection,paragraph}

\begin{document}

 % Nav bar
\Configure{crosslinks}
   {\HCode{<span class="navarrows">}[}
     {]\HCode{</font></span>}}
     {Next $\scriptstyle\Rightarrow$}
   {Prev $\scriptstyle\Leftarrow$}
   {}{}{}{Up $\scriptstyle\Uparrow$}

% Around Nav bar
\Configure{crosslinks+}
    {\HCode{<H2>}\textit{Gazprea} Spec\HCode{</H2>}} % Before top
    {}{}{}

\makeatletter
\renewcommand{\href}[2]{\bgroup\let~\H@tilde%
  \Link[#1 target="_blank"]{}{}%
  {#2}\egroup\EndLink}%
\makeatother

% Front page title
\HCode{<H2>}\textit{Gazprea} Spec\HCode{</H2>}

% Front page ToC.
\Configure{tableofcontents*}{section,subsection}

\EndPreamble