Send Array Of Check Box To Another Action

Hey iam new to Yii i want to send a array of check box to another action problem is that i dont know how to retrive it…

my code goes as

$form=$this->beginWidget(‘CActiveForm’, array(

   'id'=>'menu_form',

‘enableAjaxValidation’ => true,

‘action’=>array(‘menu/preview’),

));

           $j=1;


           for($i=1;$i<=5;$i++)


           {


               $menu=menu::model()->//data from db


               foreach ($menu as $item)


               {


                   $nv_menu=menu::model()->//data from db


                   foreach($nv_menu as $nv_item)


                           {


                              //printing data and at last printing these 


                               printf("<tr><td>Add To Cart</td><td>%s</td><td>%s</td></tr>",$form->checkBox($model,'dishes[]',array('id'=>'dishes'.$i,'value'=>$item['id'],'onclick'=>'btnactivator(this.id);')),


                                                                                       $form->checkBox($model,'dishes[]',array('id'=>'nv_dishes'.$i,'value'=>$nv_item['id'],'onclick'=>'btnactivator(this.id);')));

// in model i have already declared dishes type array