JavaScript's method of displaying the current date and time in the browser title bar

This article provides an example of how JavaScript displays the current date and time in the browser title bar. The details are as follows:

Place this script in the head area:

<script language="JavaScript">
<!--
function resetIt() {
// Calculate Time
var timerID = null;
var timerRunning = false;
if(timerRunning)
  clearTimeout(timerID);
  timerRunning = false;
// getTime
var timeNow = new Date();
var hours = timeNow.getHours();
var minutes = timeNow.getMinutes();
var seconds = timeNow.getSeconds();
var timeValue = "" + ((hours >12) ? hours -12 :hours)
timeValue = ((timeValue <10)? "0":"") + timeValue
timeValue += ((minutes < 10) ? ":0" : ":") + minutes
timeValue += ((seconds < 10) ? ":0" : ":") + seconds
timeValue += (hours >= 12) ? " PM" : " AM"
timerID = setTimeout("resetIt()",100);
timerRunning = true;
// getDate
var dateNow = new Date();
var days = new Array('Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday');
var months = new Array('January','February','March','April','May','June','July','August','September','October','November','December');
var date = ((dateNow.getDate()<10) ? "0" : "")+ dateNow.getDate();
function y2k(number){return (number < 1000) ? number + 1900 : number;}
// compileIt
today = timeValue + " " + days[dateNow.getDay()] + " " +
        months[dateNow.getMonth()] + ", " +
        date + " " +
        (y2k(dateNow.getYear()));
  if(document.all || document.getElementById){ // Browser Check
   document.title = today.toString();
  }else{
   self.status = today.toString(); // Default to status.
  }
}
resetIt();
//-->
</script>

I hope this article has been helpful to your javascript programming.