jQuery.fn.defuscate = function() {
  return this.each(function(){
    var email = String($(this).html()).replace(/\s*\(.+\)\s*/, "@");
    $(this).html('<a href="mailto:' + email + '">' + email + "</a>");
  });
};

if (Drupal.jsEnabled) {
  $(document).ready(function() {
      $(".email").defuscate(); 
  });
}