Re: Footnote in Beamer

\documentclass[12pt]{beamer}
\usepackage[latin1]{inputenc}
\usepackage[italian]{babel}
\usepackage{graphicx}
%\newtheorem{Teorema}{Teorema}
\newtheorem{definiz}{Definizione}
\newtheorem{Esempio}{Esempio}
\newtheorem{Osservazioni}{Osservazione}
%\newtheorem{Lemma}
%\usepackage{bm}
\usepackage{pgf}
\usepackage{amsbsy}
\usepackage{latexsym}
\usepackage{inputenc}
\usepackage{color}
\usepackage{times}
\mode \renewcommand{\thefootnote}{\arabic{footnote}}
\useoutertheme[subsection=false]{miniframes}

\defbeamertemplate{slidenumber}{framenumber}
{\insertframenumber}
\defbeamertemplate*{slidenumber}{totalframenumber}
{\insertframenumber\,/\,\inserttotalframenumber}
\defbeamertemplate{slidenumber}{pagenumber}
{\insertpagenumber}
\defbeamertemplate{slidenumber}{totalpagenumber}
%{\insertpagenumber\,/\,\insertpresentationendpage}

\useinnertheme{rounded}

\defbeamertemplate*{footline}{split slidenumber right}
{%
\begin{beamercolorbox}[wd=\paperwidth,ht=2.5ex,dp=1.125ex,leftskip=.3cm,rightskip=.3cm
plus1fil]{title in head/foot}%
\usebeamerfont{title in head/foot}{Approccio non parametrico all’analisi della cointegrazione}%
\hskip2ex plus1fill%
\usebeamertemplate{slidenumber}%
\end{beamercolorbox}}%
\vskip0pt%
}

\usetheme{Frankfurt}
%\usetheme[]{Marburg}
%\usetheme{Singapore}
\usecolortheme{seahorse}
\usecolortheme{rose}
\usefonttheme[onlylarge]{structuresmallcapsserif}
\usefonttheme[onlysmall]{structurebold}
\usefonttheme{serif}
\setbeamerfont{author}{shape=\scshape,family=\rmfamily}
\setbeamercolor{title}{fg=black,bg=blue!20!white}