function subscribe(messaggio) {
        if (document.forms['formNewsEties'].elements['mailnews'].value != "") {
            if (confirm(messaggio)) {
                document.forms['formNewsEties'].elements['newsaction'].value = "sub";
                document.forms['formNewsEties'].submit();
            }
        }
    }

    function unsubscribe() {
        document.forms['formNewsEties'].elements['newsaction'].value = "unsubscribe";
        document.forms['formNewsEties'].submit();
    }

    function popupWindowPC(url) {
        window.open(url,'popupWindow','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,copyhistory=no,width=440,height=500,screenX=150,screenY=150,top=150,left=150');
    }