var addresses = {
   "erMail": "-65-72-40-6f-6d-75-2e-61-74",
   "sieMail": "-73-69-65-40-6f-6d-75-2e-61-74",
   "wirMail": "-77-69-72-40-6f-6d-75-2e-61-74"
}

// onload
$(function() {
   $('a[href*="#mailto"]').each(function() {
      $this = $(this);
      var to = $this.attr('href').split(":")[1].split("?")[0];
      var query = $this.attr('href').split(":")[1].split("?")[1];
      if (addresses[to]) {
         $this.attr('href', 'mailto:' + unescape(addresses[to].replace(/\-/g,"%")) + (query ? "?" + query : ""));
         $this.empty();
         $this.append(unescape(addresses[to].replace(/\-/g,"%")));
      }
   });
});