function writeMailAddr2(name, domain, tld) {
    document.write(name + '@' + domain + '.' + tld);
}
function writeMailAddr3(name, sub, domain, tld) {
    document.write(name + '@' + sub + "." + domain + '.' + tld);
}
function writeMailTo2(name, domain, tld) {
    emailaddr = name + '@' + domain + '.' + tld;
    document.write('<a href="mailto:' + emailaddr + '">' + emailaddr + '</a>');
}
function writeMailTo3(name, sub, domain, tld) {
    emailaddr = name + '@' + sub + '.' + domain + '.' + tld;
    document.write('<a href="mailto:' + emailaddr + '">' + emailaddr + '</a>');
}