function stringReverse(textString) {
  if (!textString) return '';
  var revString = '';
  for (i = textString.length-1; i>=0; i--)
    revString+=textString.charAt(i)
  return revString;
}

function emLink(name, server) {
  var rname    = stringReverse(name);
  var rserver  = stringReverse(server);
  var email    = rname + "@" + rserver;
  var mailText = '<a href="mailto:' + email + '">' + email + '</a>';

  document.write(mailText);
}