CMenu widget like bootstrap navbar with submenu

Expand the menu <?php $this->widget('zii.widgets.CMenu', array( 'items'=>array( // Important: you need to specify url as 'controller/action', // not just as 'controller' even if default action is used. array('label'=>'Home', 'url'=>array('site/index')), // 'Products' menu item will be selected no matter which tag parameter value is since it's not specified. array( 'label'=>'Products ', 'url'=>array('#'), 'linkOptions'=> array( 'class' => 'dropdown-toggle', 'data-toggle' => 'dropdown', ), 'items'=>array( array('label'=>'New Arrivals', 'url'=>array('product/new', 'tag'=>'new')), array('label'=>'Most Popular', 'url'=>array('product/index', 'tag'=>'popular')) ), 'itemOptions'=>array('class'=>'dropdown')), array('label'=>'Login', 'url'=>array('site/login'), 'visible'=>Yii::app()->user->isGuest), ) ,'htmlOptions'=>array('class'=>'nav navbar-nav') ,'submenuHtmlOptions'=>array('class'=>'dropdown-menu') ,'encodeLabel'=>false ,'activeCssClass' => 'active' ) ); ?>