function checkeql(form, field, checkfield) {
  var val = form[field].value;
  var checkval = form[checkfield].value;
  if(!val || !val.length) {
    alert('Enter an email address');
    return false;
  }
  if(!(val == checkval)) {
    alert('email addresses do not match');
    return false;
  }
  return true;
}