It's easy, just enter email to field and copy generated code to your HTML page.
<a id="m_s_935502"></a>
<script>
var oflu = 'da' + 'rt' + '.w' + 'ei' + 'de' + 'r@' + 'de' + 'ad' + '.s' + 'ta' + 'r';
var ucfe = document.getElementById('m_s_935502');
ucfe.innerHTML = !(ucfe.innerHTML) ? oflu : ucfe.innerHTML;
ucfe.href = 'mailto:' + oflu;
</script>
<span id="m_s_424466"></span>
<script>
var fjyr = 'da' + 'rt' + '.w' + 'ei' + 'de' + 'r@' + 'de' + 'ad' + '.s' + 'ta' + 'r';
var vpmc = document.getElementById('m_s_424466');
vpmc.innerHTML = !(vpmc.innerHTML) ? fjyr : vpmc.innerHTML;
</script>