function emailLink(user, domain, subject, style) {
    document.write('<a href=\"mailto:' + user + '@' + domain);
    if (subject != '') { 
        document.write ('?subject='+subject);
    }
    document.write('\"');
    if (style != '') {
        document.write(' class=\"' + style + '\"');
    }
    document.write ('>');
    document.write(user + '@' + domain + '</a>');
}