index.js

function updateClock(){
    var now = new Date();
    var dname = now.getDay();
    var mo = now.getMonth();
    var dnum = now.getDate();
    var yr = now.getFullYear();
    var hou = now.getHours();
    var min = now.getMinutes();
    var sec = now.getSeconds();
    var pe = "AM" ;

    /*setting the hour*/
    if(hou==0){
        hou = 12;
    }
    if(hou>12){
        hou = hou-12;
        pe = "PM";
    }

    Number.prototype.pad = function(digits){
      for (var n = this.toString(); n.length < digits; n = 0 + n);
      return n;
           
    }

      var months = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"];
      var week = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"];

      var ids = ["dayname","month", "daynumber", "year", "hour", "minute", "seconds", "period"];
      var values = [week[dname], months[mo], dnum.pad(2), yr, hou.pad(2), min.pad(2), sec.pad(2), pe];
      for(var i = 0; i <ids.length; i++ )
      document.getElementById(ids[i]).firstChild.nodeValue = values[i];


}


function initClock(){
    updateClock();
    window.setInterval("updateClock()", 1);
}