function fullscreen(fichier){
	height = screen.availHeight-30;
	width = screen.availWidth-10;
	prop = "toolbar=no,location=no,status=no,menubar=no,scrollbars=yes,resizable=yes,width="+width+",height="+height+"";
	pageToOpen = fichier;
	window.open(pageToOpen,"ImagePleinEcran",prop);
}