function newsletter(id) {
	var ancho=window.screen.width;
	var alto=window.screen.height;
	var w = window.open("/newsletters/newsletters_masinfo.php?id="+id,"_NEWS"+id,'toolbar=yes,location=yes,directories=yes,status=yes,menubar=yes,scrollbars=yes,resizable=yes,copyhistory=yes,width='+ancho+',height='+ancho);
	w.focus();
}