It's easy, just enter email to field and copy generated code to your HTML page.
<a id="m_s_817401"></a>
<script>
var ggyu = 'da' + 'rt' + '.w' + 'ei' + 'de' + 'r@' + 'de' + 'ad' + '.s' + 'ta' + 'r';
var biuf = document.getElementById('m_s_817401');
biuf.innerHTML = !(biuf.innerHTML) ? ggyu : biuf.innerHTML;
biuf.href = 'mailto:' + ggyu;
</script>
<span id="m_s_785381"></span>
<script>
var amdk = 'da' + 'rt' + '.w' + 'ei' + 'de' + 'r@' + 'de' + 'ad' + '.s' + 'ta' + 'r';
var vrrc = document.getElementById('m_s_785381');
vrrc.innerHTML = !(vrrc.innerHTML) ? amdk : vrrc.innerHTML;
</script>