var MonatName = new Array(12);
MonatName[0] = 'Januar';
MonatName[1] = 'Februar';
MonatName[2] = 'März';
MonatName[3] = 'April';
MonatName[4] = 'Mai';
MonatName[5] = 'Juni';
MonatName[6] = 'Juli';
MonatName[7] = 'August';
MonatName[8] = 'September';
MonatName[9] = 'Oktober';
MonatName[10] = 'November';
MonatName[11] = 'Dezember'; 

function Datum()
{
  var today = new Date();
  var year = today.getYear();
  if (year<1000) year+=1900;
  var res = today.getDate() + '. '+ MonatName[today.getMonth()] + ' ' + year;
  document.write(res);
}

function Monat()
{
  var today = new Date();
  var year = today.getYear();
  if (year<1000) year+=1900;
  var res = MonatName[today.getMonth()];
  document.write(res);
}