CJuiAutoComplete is not working for me. It appears that my controller action is not being called. The debugger never breaks in the actionLookup function nor does the echo display. Also, I cannot get it to work if I set the source to a simple array of items. What am I doing wrong? Help would be much appreciated.
_form.php
            <?php $this->widget('zii.widgets.jui.CJuiAutoComplete', array(
                        'model' => $model,
                        'attribute' => 'zipcode',
		    'source' => $this->createUrl('address/lookup'),
                        'name' => 'zipcode',
                        'value' => $model->zipcode,
		    'htmlOptions' => array('size'=>'5'),
                        'options' => array(
			'showAnim'=>'fold',
                            'minLength' => 1, // min chars to start search
                        ),
                    )) ?>
AddressController.php
public function accessRules()
{
	return array(
		array('allow',  // allow all users to perform 'index' and 'view' actions
			'actions'=>array('index','view'),
			'users'=>array('*'),
		),
		array('allow', // allow authenticated user to perform 'create' and 'update' actions
			'actions'=>array('create','update','lookup'),
			'users'=>array('@'),
		),
		array('allow', // allow admin user to perform 'admin' and 'delete' actions
			'actions'=>array('admin','delete'),
			'users'=>array('admin'),
		),
		array('deny',  // deny all users
			'users'=>array('*'),
		),
	);
}
public function actionLookup()
{
    echo "Zipcode Lookup!";
    }