<!--
  function generate_address( username, end, full ) {
    var domain = "yourdomain.com";
    var atsign = "@";
    var addr = username + atsign + end + "." + full;
    document.write(
     "<" + "a" + " " + "href=" + "mail" + "to:" + addr + ">" + addr + "<\/a>");
    }
//-->