(function() {
  function y(s) {
    return s.replace(/[a-zA-Z]/g,(c)=>String.fromCharCode((c<="Z"?90:122)>=(c=c.charCodeAt(0)+13)?c:c-26));
  }

  let reveal = document.getElementById('email');
  reveal.addEventListener('click', () => {
    let email = 'si' + atob('dGVAYW4=') + 'na' + atob(y('L2kyoJIhpl5c')) + 'o';

    let emailLink = document.createElement('a');
    emailLink.setAttribute('href', `mailto:${email}`);
    emailLink.innerText = email;

    reveal.replaceWith(emailLink);
  });
})();