digital_clock.js

function updateClock(){
  var currentTime = new Date();
  var currentHours = currentTime.getHours();
  var currentMins = currentTime.getMinutes();
  var currentSecs = currentTime.getSeconds();
  currentMins = ( currentMins < 10 ? "0" : ""   ) + currentMins;
  currentSecs = ( currentSecs < 10 ? "0" : ""   ) + currentSecs;
  var timeOfDay = ( currentHours < 12 ) ?   "AM" : "PM";
  currentHours = ( currentHours > 12 ) ? currentHours - 12 : currentHours;
  currentHours = ( currentHours == 0 ) ? 12 : currentHours;
  var currentTimeString = currentHours + ":" + currentMins + ":" + currentSecs + " " + timeOfDay;
  document.getElementById("clock").firstChild.nodeValue = currentTimeString;
}