\def\lang{@LANG}
\def\file{@FILE}
\def\dirschema{@DIRSCHEMA}
\def\dirdoc{@DIRDOC}
\def\dircommon{\dirdoc/common}
\def\dirroot{\dirdoc/\lang}

\include{Package/\file}
\pagestyle{empty}

% Package de variables d'environnement : Titre, command etc ...
\usepackage{Include/poster-style}
\usepackage{Package/\file}

%------------------------------------------------------------------------------
% Début document
%------------------------------------------------------------------------------

\pagestyle{empty}

\begin{document}

%\background{1.}

\begin{poster}

\maketitle
\input{\dirroot/root}

\end{poster}
\end{document}