// JavaScript Document

function checkIt(evt) {
  evt = (evt) ? evt : window.event;
  var charCode = (evt.which) ? evt.which : evt.keyCode;
  if (charCode > 31 && (charCode < 48 || charCode > 57)) {
    status = "This field accepts numbers only."
    return false;
  }
  status = "";
  return true;
}