function jamhidup()
{
  var skrg = new Date();  
  var jam = skrg.getHours();
  var mnt = skrg.getMinutes();
  var dtk = skrg.getSeconds();

  if(dtk < 10) {dtk = "0" + dtk;}
  if(mnt < 10) {mnt = "0" + mnt;}
  if(jam < 10) {jam = "0" + jam;}

  document.getElementById('waktu').innerHTML=("&nbsp;"+jam+":"+mnt+":"+dtk);
}