function showTime()
{
  readTime = new Date();
  hh = readTime.getHours();
  mm = readTime.getMinutes();
  ss = readTime.getSeconds();
  if (hh <= 9) hh = "0" + hh;
  if (mm <= 9) mm = "0" + mm;
  if (ss <= 9) ss = "0" + ss;
  document.getElementById("time_script").innerHTML = hh + ":" + mm + ":" + ss;
  window.setTimeout("showTime()", 1000);
}