function email (login, sid)
{
if (sid == 'e') sid = "enina.net";
if (sid == 'g') sid = "gmail.com";
if (sid == 'm') sid = "mail.ru";

eml = login + "@" + sid;
return eml;
}

function adress (login, sid)
{
document.write (email(login, sid));
}

function sendmail (login, sid, sub)
{
eml = "mailto:" + email(login, sid);
if (sub != "") eml += "?subject=" + sub;
window.location.href = eml;
}