%% Changes in a0poster.cls:

\ifanullb
   \setlength{\paperwidth}{119cm}
   \setlength{\paperheight}{88cm}
   \setlength{\textwidth}{116cm}
   \setlength{\textheight}{88cm}
\else\ifanull
        \setlength{\paperwidth}{118.82cm}
        \setlength{\paperheight}{83.96cm}
        \setlength{\textwidth}{117.82cm}
        \setlength{\textheight}{82.96cm}
     \else\ifaeins
             \setlength{\paperwidth}{83.96cm}
             \setlength{\paperheight}{59.4cm}
             \setlength{\textwidth}{83.96cm}
             \setlength{\textheight}{58.4cm}
          \else\ifazwei
                  \setlength{\paperwidth}{59.4cm}
                  \setlength{\paperheight}{41.98cm}
                  \setlength{\textwidth}{58.4cm}
                  \setlength{\textheight}{40.98cm}
               \else\ifadrei
                       \setlength{\paperwidth}{41.98cm}
                       \setlength{\paperheight}{29.7cm}
                       \setlength{\textwidth}{40.98cm}
                       \setlength{\textheight}{28.7cm}
                    \else\relax
                    \fi
               \fi
          \fi
     \fi
\fi
\setlength{\topmargin}{-10.7 mm}  % -1in +1.47cm
\setlength{\oddsidemargin}{-21.4 mm} % -1in +0.4cm

\ifportrait
   \newdimen\tausch
   \setlength{\tausch}{\paperwidth}
   \setlength{\paperwidth}{\paperheight}
   \setlength{\paperheight}{\tausch}
   \setlength{\tausch}{\textwidth}
   \setlength{\textwidth}{\textheight}
   \setlength{\textheight}{\tausch}
\else\relax
\fi


%% Additional commands:
\makeatletter
\renewcommand{\section}{\@startsection {section}{1}{\z@}%
  {-3.5ex \@plus -1ex \@minus -.2ex}%
  {2.3ex \@plus.2ex}%
  {\reset@font\Large\bfseries\sffamily}}
\renewcommand{\subsection}{\@startsection{subsection}{2}{\z@}%
  {-3.25ex\@plus -1ex \@minus -.2ex}%
  {1.5ex \@plus .2ex}%
  {\reset@font\large\bfseries\sffamily}}
\makeatother

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%               Hintergrund                    %%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\newcommand{\background}[3]{\newrgbcolor{cgradbegin}{#1}
  \newrgbcolor{cgradend}{#2} 
  \psframe[fillstyle=gradient,gradend=cgradend,
  gradbegin=cgradbegin,gradmidpoint=#3](0.,0.)(1.\textwidth,-1.\textheight)}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%                Header                        %%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\newenvironment{header}[1][1. 1. 1.] {
    \vspace{2em}

    \begin{center}
    \newrgbcolor{hcolor}{#1}
    \begin{lrbox}{\dummybox} 
    \begin{minipage}[t]{.9\textwidth}
 }
 {  \end{minipage} \end{lrbox}
      \raisebox{-\depth}{\hspace{.5in}\hspace{-4mm}
       \psshadowbox[fillstyle=solid,fillcolor=hcolor,framesep=8mm]
    {\usebox{\dummybox}}} \end{center}
     \vspace{2em}
 }

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%                Header no shadow              %%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\newenvironment{headerns}[1][1. 1. 1.] {
    \vspace{2em}

    \begin{center}
    \newrgbcolor{hcolor}{#1}
    \begin{lrbox}{\dummybox} 
    \begin{minipage}[t]{.9\textwidth}
 }
 {  \end{minipage} \end{lrbox}
      \raisebox{-\depth}{\hspace{.5in}\hspace{-4mm}
       \psshadowbox[fillstyle=solid,fillcolor=hcolor,framesep=8mm,shadowsize=0pt]
    {\usebox{\dummybox}}} \end{center}
     \vspace{2em}
 }

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%                Poster                        %%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\newsavebox{\dummybox}
\newsavebox{\spalten}

\newenvironment{poster} {
   \vfill \begin{minipage}{\textwidth}  }
  {\end{minipage} \vfill}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%                pcolumn                       %%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\newcommand{\columnfrac}{.3}
\newenvironment{pcolumn}{%
  \hfill\begin{minipage}[t]{\columnfrac\textwidth}}{\end{minipage}\hfill%
}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%                pbox                          %%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\newenvironment{pbox}[1][1. 1. 1.] {
   \newrgbcolor{bcolor}{#1}
  \begin{lrbox}{\dummybox}%
    \begin{minipage}{0.96\linewidth}}%
    {\end{minipage}
  \end{lrbox}
  \raisebox{-\depth}{\hspace{-.5em} 
   \psshadowbox[fillstyle=solid,fillcolor=bcolor,framesep=1em]{\usebox{\dummybox}}} \vspace{2em} \vfill}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%                pbox   no shadow              %%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\newenvironment{pboxns}[1][1. 1. 1.] {
   \newrgbcolor{bcolor}{#1}
  \begin{lrbox}{\dummybox}%
    \begin{minipage}{0.96\linewidth}}%
    {\end{minipage}
  \end{lrbox}
  \raisebox{-\depth}{\hspace{-.5em} 
   \psshadowbox[fillstyle=solid,fillcolor=bcolor,framesep=1em,shadowsize=0pt]{\usebox{\dummybox}}} \vspace{2em} \vfill}