function SFEmail(username, domain, subject, text) {
    email = (username + '@' + domain);
    href = ('mailto:' + email);
    if (subject != undefined) {
        href += '?Subject=' + subject;
    }
    if (text == undefined) {
        document.write('<a href="' + href + '">' + email + '</a>');
    }
    else {
        document.write('<a href="' + href + '">' + text + '</a>');
    }
}

function SFEmailButton(username, domain, subject, text) {
    email = (username + '@' + domain);
    href = ('mailto:' + email);
    if (subject != undefined) {
        href += '?Subject=' + subject;
    }
    if (text == undefined) {
        document.write('<a class="button" href="' + href + '">' + email + '</a>');
    }
    else {
        document.write('<a class="button" href="' + href + '">' + text + '</a>');
    }
}