function registraMailingList() {
    var email = verificaEmail('idMailFocus');
    if (!email) {
        alert('L\'indirizzo e-mail inserito e\' errato');
    } else {
        var code = hex_md5(document.getElementById('idMailFocus').value);
        var emailvalue = document.getElementById('idMailFocus').value;
        Wrox.AjaxFunction.registraEmailMailing(emailvalue, code, sendDescrizioneMailing);
    }
}

function sendDescrizioneMailing(oResponse) {
    if (!oResponse.error) {
        displayDescrizione(oResponse.value);
    } else {
        alert("An error occurred: " + oResponse.value);
    }
}

function mailFocus() {
    if (document.getElementById('idMailFocus').value == 'Mailing List') {
        document.getElementById('idMailFocus').value = "";
        document.getElementById('idMailFocus').style.fontWeight = "normal";
        document.getElementById('idMailFocus').style.fontStyle = "normal";
    }
}

function mailFocusLost() {
    if (document.getElementById('idMailFocus').value == '') {
        document.getElementById('idMailFocus').value = "Mailing List";
        document.getElementById('idMailFocus').style.fontStyle = "italic";
        document.getElementById('idMailFocus').style.fontWeight = "bold";

    }
}