Restricted installer

Script must be run as root.

unified restricted installer script [not working]

if zenity --title "Restricted software installation" --text "The software you are about to install might or might not be
restricted by the ridiculous copyright laws of the United States. By clicking yes, you may be violating the DMCA, then
again, you might not be, we really dont know. For more information visit http://patentabsurdity.com/" --question; then
   xterm -e cp /etc/apt/sources.list /etc/apt/sources.list.backup
   xterm -e sed -i -e "s/# deb/deb/g" /etc/apt/sources.list
   xterm -e apt-get update
	CN=`lsb_release -cs`
	if [[ "${CN}" == "hardy" || "${CN}" == "intrepid" ]]
	then
               apturl apt:vlc,ubuntu-restricted-extras,libdvdread3
		xterm -e /usr/share/doc/libdvdread3/install-css.sh
	else
               apturl-gtk apt:vlc,ubuntu-restricted-extras,libdvdread4
	        xterm -e /usr/share/doc/libdvdread4/install-css.sh
	fi
fi

Hardy/Interpid Install

if zenity --title "Restricted software installation" --text "The software you are about to install might or might not be
restricted by the ridiculous  copyright laws of the United States. By clicking yes, you may be violating the DMCA,
then again, you might not be, we really  dont know. For more information visit http://patentabsurdity.com/" --question; then
  xterm -e cp /etc/apt/sources.list /etc/apt/sources.list.backup
  xterm -e sed -i -e "s/# deb/deb/g" /etc/apt/sources.list
  xterm -e mv sources.list.new /etc/apt/sources.list
  xterm -e apt-get update
  apturl apt:vlc,ubuntu-restricted-extras,libdvdread3
  xterm -e /usr/share/doc/libdvdread3/install-css.sh
fi

Jaunty/Karmic/Lucid Install

if zenity --title "Restricted software installation" --text "The software you are about to install might or might not be
restricted by the ridiculous  copyright laws of the United States. By clicking yes, you may be violating the DMCA,
then again, you might not be, we really  dont know. For more information visit http://patentabsurdity.com/" --question; then
  xterm -e cp /etc/apt/sources.list /etc/apt/sources.list.backup
  xterm -e sed -i -e "s/# deb/deb/g" /etc/apt/sources.list
  xterm -e mv sources.list.new /etc/apt/sources.list
  xterm -e apt-get update
  apturl-gtk apt:vlc,ubuntu-restricted-extras,libdvdread4
  xterm -e /usr/share/doc/libdvdread4/install-css.sh
fi