Header Part

<..configure mozilla tex4ht ..>+

\:CheckOption{pmathml} \if:Option
    <.pmathml configurations .>
   \:CheckOption{pmathml-css} \if:Option \else
       \Log:Note{If css rendering is preferred
          for MathML, use option ‘pmathml-css’ instead of ‘pmathml’.}
       <.pmathml but not pmathml-css .>
   \fi
\else
   \:CheckOption{pmathml-css} \if:Option \else
      \Log:Note{For multi-platform MathML
        through stylesheet transforms, use the command line option
        ‘pmathml’. If css rendering is preferred, use ‘pmathml-css’.}
\fi \fi

-_-_-

<..pmathml configurations ..>

\:CheckOption{pmathml-css} \if:Option
   \Configure{XML-STYLESHEET}
     {\HCode{%
       <?xml-stylesheet type="text/xsl"
                        href="pmathmlcss.xsl"?>\Hnewline
       \Hnewline
   }}
\else
   \Configure{XML-STYLESHEET}
     {\HCode{%
       <?xml-stylesheet type="text/xsl"
                        href="pmathml.xsl"?>\Hnewline
       \Hnewline
   }}
\fi

-_-_-

<..pmathml configurations ..>+

\:CheckOption{pmathml-css} \if:Option
    \Configure{@HTML}
      {xmlns:math="http://www.w3.org/1998/Math/MathML"\Hnewline
       xmlns:pref="http://www.w3.org/2002/Math/preference"\Hnewline
       pref:renderer="css"
      }
\fi

-_-_-

<..configure mozilla Preamble ..>+

\:CheckOption{pmathml-css} \if:Option
\edef\Preamble{\Preamble,pmathml}
\fi

-_-_-

http://www.w3.org/Math/XSL/Overview.html and http://www.w3.org/Math/XSL/Overview-tech.html explains how to make .xml pages (in fact, Tex4ht option MOZILLA) to Explorer 6 even WITHOUT Mathplayer: it requires two .xsl style sheets (pmathml.xsl and pmathmlcss.xsl, they can be retrieved there) and replacing <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//|<dtd lang|>" "mathml.dtd"> with <?xml-stylesheet type="text/xsl" href="pmathml.xsl"?>. Moreover, if one has Mathplayer installed, one must keep it away, for check purposes, by replacing <html...> with

3.1 Header Part