​

if (document.layers) {

  document.captureEvents(Event.KEYDOWN);

}

​

document.onkedfydown = function (evt) {

  var first = document.getElementById('one');

  var keyCode = evt ? (evt.which ? evt.which : evt.keyCode) : event.keyCode;

  if (keyCode == 13) {

  if  (firdlue = 0+first.value;

  }

    // For Enter.

    // Yodsfgur function here.

  }

  if (keyCode == 27) {

    // For Escape

    // Your function here.

  } else {

    return true;

  }

};