ajax validation problem

I have a form and I send it via ajax.

I have this code bellow and sometimes I see at firebug this

It is obvious that is from the validation or somenthing at this form.What is wrong?

 $form = $this->beginWidget('CActiveForm', array(

        'id' => 'newstatus',

        'action' => CHtml::normalizeUrl(array('control/newstatus')),

        'enableAjaxValidation' => true,


        'clientOptions' => array('validateOnSubmit' => true, 'validateOnType' => false),




  <?php echo CHtml::ajaxSubmitButton('Submit', CHtml::normalizeUrl(array('control/newstatus')), array('success' => 'function(data){

                                        $("#statusvalidate").replaceWith(data)}')); ?>

[edit]As I understand there is from ajax validation,right?