var Wochentage = new Array("Sonntag","Montag","Dienstag","Mittwoch", "Donnerstag", "Freitag", "Samstag");
var Monate = new Array("Januar","Februar","März","April","Mai","Juni","Juli","August","September","Oktober","November","Dezember");

var Updated = new Date(document.lastModified);
var Wochentag = Wochentage[Updated.getDay()];
var Monat = Monate[Updated.getMonth()];
var Tag = Updated.getDate();
var Jahr = Updated.getFullYear();
var Stunde = Updated.getHours();
var Minute = Updated.getMinutes();
  if (Tag < 10) Tag = "0" + Tag;
  if (Minute < 10) Minute = "0" + Minute;
var UpdateText="Letzte Aktualisierung: " + Wochentag + ", " + Tag + ". " + Monat + " " + Jahr + " um " + Stunde + ":" + Minute + " Uhr" ;
  document.write('' + UpdateText);