% EQUADIFF PACKAGE version 1.1 FOR LLNCS DOCUMENT CLASS -- version 2.1a
% designed for LaTeX2e, not tested for L209
%
\typeout{Equadiff style version 1.1 (PS)} 

\newif\if@AMSclassification
\newif\if@surname
\newif\if@email
\newif\if@keywords
\newenvironment{contribution}{%
\begingroup
\@AMSclassificationfalse
\@surnamefalse
\@emailfalse
\@keywordsfalse
}{\testalldoneright\endgroup}
\newenvironment{AMSclassification}{%
      \global\@AMSclassificationtrue
      \list{}{\advance\topsep by0.35cm\relax\small
      \leftmargin=1cm
      \labelwidth=\z@
      \listparindent=\z@
      \itemindent\listparindent
      \rightmargin\leftmargin}\item[\hskip\labelsep
                                    \bfseries\amsclassname]}
    {\endlist}
\newenvironment{keywords}{%
      \global\@keywordstrue
      \list{}{\advance\topsep by0.35cm\relax\small
      \leftmargin=1cm
      \labelwidth=\z@
      \listparindent=\z@
      \itemindent\listparindent
      \rightmargin\leftmargin}\item[\hskip\labelsep
                                    \bfseries\keywordsname]}
    {\endlist}
\newcommand{\amsclassname}{AMS Subject Classification.}
\newcommand{\keywordsname}{Keywords.}
\newcommand{\surname}[1]{\global\@surnametrue#1}
\newcommand{\subject}[1]{#1}
\newcommand{\keyword}[1]{#1}
\newcommand{\email}[1]{Email: \texttt{#1}}
\newcommand{\homepage}[1]{WWW: \texttt{#1}}
\newcommand{\ERRE@}[1]{\typeout{****** #1 Study the Equadiff/LLNCS LaTeX style
      and example files, please. *******}}
\newcommand{\testalldoneright}{%
\if@surname\else\ERRE@{Surnames not specified!}\fi
\if@AMSclassification\else\ERRE@{AMS classification not specified!}\fi
\if@email\else\ERRE@{Email not specified!}\fi
\if@keywords\else\ERRE@{Keywords not specified!}\fi
}
\endinput % of EQUADIFF LaTeX style