function tick() {
  var hours, minutes, seconds;
  var intHours, intMinutes, intSeconds;
  var today;

  today = new Date();

  intHours = today.getHours();
  intMinutes = today.getMinutes();
  intSeconds = today.getSeconds();

  if (intMinutes < 10) {
     minutes = "0"+intMinutes;
  } else {
     minutes = intMinutes;
  }

  if (intSeconds < 10) {
     seconds = "0"+intSeconds;
  } else {
     seconds = intSeconds;
  } 
  f = '<font size="2">';
  g = '</font>';
  timeString = f+intHours+":"+minutes+":"+seconds+g;

  Clock.innerHTML = timeString;

  window.setTimeout("tick();", 100);
};
window.onload = tick;