How To Pass Another Dropdownlist Value To Controller With Ajax?

Yii 1.1 General Discussion
1

I want to after select C_seat dropdownlist will sent 3 dropdownlist value to controller to match database.

view.php




<?php

echo $form->dropdownlistRow(@model, 't1', $this->Value(), array());

echo $form->dropdownlistRow(@model, 't2', $this->Value(), array());

echo $form->dropDownListRow($model, 'C_seats', $this->getValue(), array('empty' => 'select',

    'ajax' => array(

        'type' => 'POST',

        'url' => CController::createUrl('Controller/isAvailable'),

        'update' => '#status',

        'data' => array('seats' => 'js:this.value'),

    ), 'class' => 'input-small'

));

?>

<div id="status"></div>
2

Help me pls. or have another way can do that?? T^T