\ifstyleloaded\relax
\else
\input{articlecommon.hva}
\@makesection
  {\part}{-1}{part}
  {\@open{H1}{ALIGN=center}}{\partname~\thepart}{\\}{\@close{H1}}
\@makesection
  {\section}{0}{section}
  {\@open{H2}{}}{\thesection}{\quad}{\@close{H2}}%
\@makesection
  {\subsection}{1}{subsection}
  {\@open{H3}{}}{\thesubsection}{\quad}{\@close{H3}}%
\@makesection
  {\subsubsection}{2}{subsubsection}
  {\@open{H4}{}}{\thesubsubsection}{\quad}{\@close{H4}}%
\@makesection
  {\paragraph}{3}{paragraph}
  {\@open{H5}{}}{\theparagraph}{\quad}{\@close{H5}}%
\@makesection
  {\subparagraph}{4}{subparagraph}
  {\@open{H5}{}}{\thesubparagraph}{\quad}{\@close{H5}}%
\styleloadedtrue
\fi