document.write('<div id=digitalclock></div>');

function updateTime(){
  if (!document.all&&!document.getElementById)
    return;
  theclock=document.getElementById? document.getElementById("digitalclock"): document.all.digitalclock;
  theclock.innerHTML=new Date();
  setTimeout('updateTime()',1000);
  return;
}
window.onload=updateTime;