document.observe('dom:loaded', function() {
   var c="d-bertr";
   var a="mai";
   var d="am.de";
   var b="l@luftbil";
   $$('span.email').each(function(s){s.innerHTML = "<a href=\"mai" + "lto:" + a + b + c + d + "\" title=\"E-Mail an Luftbild Bertram\">" + a + b + c + d + "</a>"});
});