navigation menu using cakePhp tree

I am using CakePHP tree to generate my navigation menu . I have generated it successfully. now i need to show them in navigation behavior. I have tried. it is working but after this basic code i dont know what to do after this .. how could i build navigation.. My HomeController.php App::uses('AppController', 'Controller'); class HomeController extends AppController { var $name='home'; public function index() { $this->layout = "front_end_index"; $this->loadModel('Category'); $category_tree = $this->Category->generateTreeList(); $categories_array = array(); foreach($category_tree as $k => $v) { $categories_array[$k] = $this->Category->find('first', array('conditions' => array('Category.id' => $k))); } $this->set('cat_info',$categories_array); } } My category.ctp <?php foreach($cat_info as $cat_info) { if($cat_info['Category']['parent_id'] == ''){ ?> <ul class="menus"> <li><h4><?php echo $cat_info['Category']['name'] ;?></h4></li> <?php } ?> </ul> <?php } ?> Navigation array sample : Array ( [1] => Array ( [Category] => Array ( [id] => 1 [parent_id] => [lft] => 1 [rght] => 42 [name] => My Categories [url] => http://google.com ) ) [2] => Array ( [Category] => Array ( [id] => 2 [parent_id] => 1 [lft] => 2 [rght] => 17 [name] => Fun [url] => http://google.com ) ) [3] => Array ( [Category] => Array ( [id] => 3 [parent_id] => 2 [lft] => 3 [rght] => 8 [name] => Sport [url] => http://google.com ) )

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