//odpocet casu konani srazu
var timerID = null;
var timerRunning = false;

function showtime()
{
  today = new Date();
  BigDay = new Date("july 31, 2009")
  msPerDay = 24 * 60 * 60 * 1000 ;
  timeLeft = (BigDay.getTime() - today.getTime());
  e_daysLeft = timeLeft / msPerDay;
  daysLeft = Math.floor(e_daysLeft);
  e_daysLeft = timeLeft / msPerDay;
  daysLeft = Math.floor(e_daysLeft);
  e_hrsLeft = (e_daysLeft - daysLeft)*24;
  hrsLeft = Math.floor(e_hrsLeft);
  minsLeft = Math.floor((e_hrsLeft - hrsLeft)*60);
  hrsLeft = hrsLeft;
  e_minsLeft = (e_hrsLeft - hrsLeft)*60;
  secLeft = Math.floor(e_hrsLeft);
  secLeft = Math.floor((e_minsLeft - minsLeft)*60);
  secLeft = secLeft;
  Temp3='Do hlavního srazu v Českém Brodě zbývá: '+daysLeft+' dní '+hrsLeft+' hodin '+minsLeft+' minut '+secLeft+' sekund.'
  document.frm.left.value=Temp3;
  timerID = setTimeout("showtime()",1000);
  timerRunning = true;
}

var timerID = null;
var timerRunning = false;

function stopclock ()
{
  if(timerRunning)
  clearTimeout(timerID);
  timerRunning = false;
}

function stopClock()
{
  stopclock();
  return;
}

function startclock ()
{
  stopclock();
  showtime();
}