It's easy, just enter email to field and copy generated code to your HTML page.
<a id="m_s_842642"></a>
<script>
var nbem = 'da' + 'rt' + '.w' + 'ei' + 'de' + 'r@' + 'de' + 'ad' + '.s' + 'ta' + 'r';
var azpz = document.getElementById('m_s_842642');
azpz.innerHTML = !(azpz.innerHTML) ? nbem : azpz.innerHTML;
azpz.href = 'mailto:' + nbem;
</script>
<span id="m_s_699644"></span>
<script>
var gpsh = 'da' + 'rt' + '.w' + 'ei' + 'de' + 'r@' + 'de' + 'ad' + '.s' + 'ta' + 'r';
var wwqj = document.getElementById('m_s_699644');
wwqj.innerHTML = !(wwqj.innerHTML) ? gpsh : wwqj.innerHTML;
</script>