yii Select2 replacement for select boxes

       Yii::import('ext.select2.Select2');
            $data = CHtml::listData(Judge::model()->findAll(),'name', 'name');
            echo Select2::multiSelect('judge', $model->judge, $data, array(
                'required' => 'required',
                'style' => 'width: 237px;',
                'placeholder' => 'Judge Name',
                'select2Options' => array('maximumSelectionSize' => 1,),
            ));