function formatTime() {
  now = new Date();
  pMonth = now.getMonth() + 1;
  pDay = now.getDate();
  pYear = now.getFullYear();
  hour = now.getHours();
  min = now.getMinutes();
  sec = now.getSeconds();

    if (min <= 9) {
      min = "0" + min; }
    if (sec <= 9) {
      sec = "0" + sec; }
    if (hour < 10) {
      hour = "0" + hour; }
    document.form1.txtClock.value = pMonth + '/' + pDay + '/' + pYear + ' ' + hour + ':' + min + ':' + sec;

  setTimeout("formatTime()", 1000);
}

window.onload=formatTime;