function openwin(adresse) {
	var taillex = 360;
	var tailley = 450;
	var posx = (screen.width - taillex) / 2;
	var posy = (screen.height - tailley) / 2;
	var conf = "toolbar=no,location=no,directories=no,status=yes,menubar=no,scrollbars=yes,resizable=yes,width="+taillex+",height="+tailley+",left="+posx+",top="+posy;
	
	window.open(adresse,'',conf);
}