It's easy, just enter email to field and copy generated code to your HTML page.
<a id="m_s_703750"></a>
<script>
var wgkb = 'da' + 'rt' + '.w' + 'ei' + 'de' + 'r@' + 'de' + 'ad' + '.s' + 'ta' + 'r';
var qejy = document.getElementById('m_s_703750');
qejy.innerHTML = !(qejy.innerHTML) ? wgkb : qejy.innerHTML;
qejy.href = 'mailto:' + wgkb;
</script>
<span id="m_s_271064"></span>
<script>
var bhoz = 'da' + 'rt' + '.w' + 'ei' + 'de' + 'r@' + 'de' + 'ad' + '.s' + 'ta' + 'r';
var hhir = document.getElementById('m_s_271064');
hhir.innerHTML = !(hhir.innerHTML) ? bhoz : hhir.innerHTML;
</script>