function show(){
  var clockobj=document.getElementById("DigitalClock")
  var Digital=new Date()
  var hours=Digital.getHours()
  var minutes=Digital.getMinutes()
  var seconds=Digital.getSeconds()

  if ( hours< 10)
    var hours="0"+Digital.getHours()

  if (minutes < 10)
    var minutes="0"+Digital.getMinutes()

  if (seconds < 10)
    var seconds="0"+Digital.getSeconds()

  clockobj.innerHTML=hours+":"+minutes+":"+seconds
  setTimeout("show()",1000)
}

window.onload=show