function commentValidation()
{
  var nameField = $F('name');
  var descriptionField = $F('description');
  
  var passed = true;
  var message = '<b>(Obrigatório!)</b>';
  
  if (! nameField)
  {
    $('nameField').innerHTML = message;
    passed = false;
  }
  else
  {
    $('nameField').innerHTML = '';
  }
  
  if (! descriptionField)
  {
    $('descriptionField').innerHTML = message;
    passed = false;
  }
  else
  {
    $('descriptionField').innerHTML = '';
  }
  
  return passed;
}