function pleinecran(fichier) {
if( (navigator.appName == "Microsoft Internet Explorer")
  && (navigator.platform != "MacPPC") ) {
	ff=window.open(fichier,'plein','fullscreen=yes');
} else {
  ff=window.open(fichier,'plein','top=0,left=0,width='+screen.width
     +',height='+screen.height+',menubar=no,resize=no'); }
}