function visszaszamlalas() {
  var dateob = new Date;
  var cur = dateob.getTime();
  var cur = parseInt(cur / 1000);

  var date = document.getElementById("live_date").innerHTML;
  
  if ( !date) {
    document.getElementById("live_fejlec_szamlalo").innerHTML = "Nincs adat";
    return true;
  }
  
  date = date - cur;

  var nap = Math.floor(date / 86400);
  date = date-nap*86400;
  var ora = Math.floor(date / 3600);
  date = date-ora*3600;
  var perc = Math.floor(date / 60);
  var mp = date-perc*60;
  
  document.getElementById("live_fejlec_szamlalo").innerHTML = '<b>'+nap+'</b><span>N </span><b>'+ora+'</b><span>Ó </span><b>'+perc+'</b><span>P </span><b>'+mp+'</b><span>MP</span>';
  
  var timerID = setTimeout("visszaszamlalas()", 1000);
}

var timerID = setTimeout("visszaszamlalas()", 1000);