Some coments in the preamble to document it

ttnn-n7-2014.tex

@@ -11,10 +11,11 @@
 \usepackage{textcomp}
 \usepackage{xcolor}
 \usepackage{pgfplots}
-\usepgfplotslibrary{dateplot}
+\usepgfplotslibrary{dateplot} % Needs TeXlive 2013 ... 
 
 \usetheme{Rochester}
 
+% Page number n/tot in the lower right corner
 \usefoottemplate{
   \begin{beamercolorbox}[ht=2.25ex,dp=4ex,right,ignorebg]{date in head/foot}
     \usebeamerfont{date in head/foot}
@@ -23,30 +24,33 @@
   }
 \usenavigationsymbolstemplate{}
 
-\graphicspath{{../images/}}
+% \graphicspath{{../images/}}
 
+% Color for links
 \definecolor{darkblue}{rgb}{0.,0.2,0.375} 
 \hypersetup{
   colorlinks=true,
   urlcolor=darkblue,
   linkcolor=black
 }
+% also use it for page numbers 
 \setbeamercolor*{palette secondary}{fg=darkblue,bg=black!25}
 
-%\urlstyle{same}
+% a macro for figures
+\newcommand\fig[2]{
+  \centerline{\includegraphics[width=#2]{#1}}}
 
+% Tetaneutral.net logo
 \definecolor{ttnn1}{rgb}{.695,.645,.551}
 \definecolor{ttnn2}{rgb}{.906,.839,.730}
-
 \newcommand{\ttnn}{\Huge\color{ttnn1}{\textbf{teta}}\color{ttnn2}{neutral}\color{ttnn1}{.net}}
 
+% go
 \title{Tetaneutral.net un FAI associatif}
 \author{Laurent Guerby \& Matthieu Herrb}
 \institute{\ttnn{}}
 \date{ENSEEIHT - 21 janvier 2014}
 
-\newcommand\fig[2]{
-  \centerline{\includegraphics[width=#2]{#1}}}
 
 \AtBeginSection[]{
 \begin{frame}<beamer>
@@ -54,12 +58,6 @@
 \tableofcontents[currentsection]
 \end{frame}
 }
-\AtBeginSubsection[]{
-  \begin{frame}<beamer>
-  \frametitle{Agenda}
-  \tableofcontents[currentsubsection]
-  \end{frame}
-}
 %----------------------------------------------------------------------
 \begin{document}
 %----------------------------------------------------------------------