// JavaScript Document

function updateClock ( )
{
  var currentTime = new Date ( );

  var currentHours = currentTime.getHours ( );
  var currentMinutes = currentTime.getMinutes ( );
  var currentSeconds = currentTime.getSeconds ( );
  var currentDay = currentTime.getDay ( );
  var currentMonth = currentTime.getMonth ( );
  var currentYear = currentTime.getFullYear ( );
  var currentDate = currentTime.getDate ( );
  
  var weekday=new Array(7);
	weekday[0]="Sun";
	weekday[1]="Mon";
	weekday[2]="Tue";
	weekday[3]="Wed";
	weekday[4]="Thu";
	weekday[5]="Fri";
	weekday[6]="Sat";
  var currentWeekday = weekday[currentDay];
  
  var month=new Array(12);
	month[0]="Jan";
	month[1]="Feb";
	month[2]="Mar";
	month[3]="Apr";
	month[4]="May";
	month[5]="Jun";
	month[6]="Jul";
	month[7]="Aug";
	month[8]="Sep";
	month[9]="Oct";
	month[10]="Nov";
	month[11]="Dec";
  var currentMonthName = month[currentMonth];

  // Pad the minutes and seconds with leading zeros, if required
  currentMinutes = ( currentMinutes < 10 ? "0" : "" ) + currentMinutes;
  currentSeconds = ( currentSeconds < 10 ? "0" : "" ) + currentSeconds;

  // Choose either "AM" or "PM" as appropriate
  var timeOfDay = ( currentHours < 12 ) ? "AM" : "PM";

  // Convert the hours component to 12-hour format if needed
 // currentHours = ( currentHours > 12 ) ? currentHours - 12 : currentHours;

  // Convert an hours component of "0" to "12"
  currentHours = ( currentHours == 0 ) ? 12 : currentHours;

  // Compose the string for display
  var currentTimeString = currentWeekday + " " + currentMonthName + " " + currentDate + " " + currentYear + " " + currentHours + ":" + currentMinutes + ":" + currentSeconds + " " + timeOfDay;

  // Update the time display
  document.getElementById("currentTime").firstChild.nodeValue = currentTimeString;
}