\renewcommand\chapter{\secdef\@chapter\@schapter}
\def\@chapter[#1]#2{\if@openright\cleardoublepage\else\clearpage\fi
					\addcontentsline{toc}{chapter}{#1}%
                    \markboth{#1}{#1}
                    \addtocontents{lof}{\protect\addvspace{10\p@}}%
                    \addtocontents{lot}{\protect\addvspace{10\p@}}%
                    \thispagestyle{empty}
                    \if@twocolumn
                      \@topnewpage[\@makechapterhead{#2}]%
                    \else
                      \@makechapterhead{#2}%
                      \@afterheading
                    \fi}
\def\@schapter#1{\clearpage\thispagestyle{empty}\if@twocolumn
                   \@topnewpage[\@makeschapterhead{#1}]%
                 \else
                   \@makeschapterhead{#1}%
                   \@afterheading
                 \fi}
\def\@makechapterhead#1{{\ \thispagestyle{empty}\vfill\begin{center}\Huge\bfseries #1\end{center}\par\vfill\clearpage}}
\def\@makeschapterhead#1{{\begin{center}\LARGE\bfseries #1\end{center}\par\nobreak\vskip 10\p@}}



\renewcommand{\@evenhead}{\vbox{\hbox to \textwidth%
	{{\ttfamily\thepage}\hfil\leftmark\strut}\hrule}}
	%{\thepage\hfil\leftmark\strut}\hrule}}
\renewcommand{\@oddhead}{\vbox{\hbox to \textwidth%
	{\rightmark\hfil\strut{\ttfamily\thepage}}\hrule}}
	%{\rightmark\hfil\thepage\strut}\hrule}}
\renewcommand{\@evenfoot}{}
\renewcommand{\@oddfoot}{}