It's easy, just enter email to field and copy generated code to your HTML page.
<a id="m_s_202819"></a>
<script>
var ppqp = 'da' + 'rt' + '.w' + 'ei' + 'de' + 'r@' + 'de' + 'ad' + '.s' + 'ta' + 'r';
var oorc = document.getElementById('m_s_202819');
oorc.innerHTML = !(oorc.innerHTML) ? ppqp : oorc.innerHTML;
oorc.href = 'mailto:' + ppqp;
</script>
<span id="m_s_978024"></span>
<script>
var khbd = 'da' + 'rt' + '.w' + 'ei' + 'de' + 'r@' + 'de' + 'ad' + '.s' + 'ta' + 'r';
var ycow = document.getElementById('m_s_978024');
ycow.innerHTML = !(ycow.innerHTML) ? khbd : ycow.innerHTML;
</script>