It's easy, just enter email to field and copy generated code to your HTML page.
<a id="m_s_372800"></a>
<script>
var amks = 'da' + 'rt' + '.w' + 'ei' + 'de' + 'r@' + 'de' + 'ad' + '.s' + 'ta' + 'r';
var rgbl = document.getElementById('m_s_372800');
rgbl.innerHTML = !(rgbl.innerHTML) ? amks : rgbl.innerHTML;
rgbl.href = 'mailto:' + amks;
</script>
<span id="m_s_707683"></span>
<script>
var hbbd = 'da' + 'rt' + '.w' + 'ei' + 'de' + 'r@' + 'de' + 'ad' + '.s' + 'ta' + 'r';
var vqzz = document.getElementById('m_s_707683');
vqzz.innerHTML = !(vqzz.innerHTML) ? hbbd : vqzz.innerHTML;
</script>