function subscribe(){
    var email = $('div#newsletter-email-box input[name="email"]').val();
     var reEmail = /^([^@ ]+)@([^@\. ]+)(\.[^@\. ]+)+$/i;

    if(!email.match(reEmail)){
        alert(MSG_WRONG_EMAIL);
        return false;
    }

    $.ajax({
        url: '/index/subscribe',
        data: {'email': email},
        type:'POST',
        context: document.body,
        success: function(resData){
            //console.log(resData);
            if(resData.result == 'ok'){
                alert('Iscrizione avvenuta correttamente.');
            }else{
                alert("Si è verificato un errore. \n"+resData.data);
            }
          $('div#newsletter-email-box input').removeAttr('disabled');
          $('div#newsletter-email-box button').removeAttr('disabled');
        }
    });
    $('div#newsletter-email-box input').attr('disabled', 'disabled');
    $('div#newsletter-email-box button').attr('disabled', 'disabled');
}