function date_ddmmmyy(date)
{
  var d = date.getDate();
  var m = date.getMonth() + 1;
  var y = date.getYear();

  if(y >= 2000) {y -= 2000;}
  if(y >= 100){y -= 100;}

  var mmm = ( 1==m)?'Jan':( 2==m)?'Feb':(3==m)?'Mar': ( 4==m)?'Apr':( 5==m)?'May':(6==m)?'Jun': ( 7==m)?'Jul':( 8==m)?'Aug':(9==m)?'Sep': (10==m)?'Oct':(11==m)?'Nov':'Dec';

  return "" + (d<10?"0"+d:d) + "." + m + ".20" + (y<10?"0"+y:y);
}

function date_lastmodified()
{
  var lmd = document.lastModified;
  var s   = "Neznámé datum";
  var d1;
  if(0 != (d1=Date.parse(lmd))) {s = "" + date_ddmmmyy(new Date(d1));}
  return s;
}