function submitCommentForm(form_id) {
  var form_obj = document.getElementById(form_id);
  if (!form_obj) return;
  if (form_obj.name.value == '') {
    alert('You\'ll need to provide a name!');
    return;
  }
  if (form_obj.comments.value == '') {
    alert('You\'ll need to provide some comments before submitting!');
    return;
  }
  form_obj.submit();
}