dependent select

Hi!

I have this code for my products



function products_v()

{

 

  try{

 

   $crud = new grocery_CRUD();

   

   $crud->set_theme('datatables');

  

   $crud->set_table('products');



   $crud->set_subject('Products');



   $crud->required_fields(

    'id',

    'name',

    'category',

    'subcategory'

   );

  

   $crud->columns(

     'id',

    'name',

    'category',

    'subcategory'

    'price',

    'active',

    'image'

   );

  

   $crud->set_relation('id_category', 'category', 'name_category');

   $crud->set_relation('id_subcategory', 'subcategory', 'name_subcategory');

  

  

   $crud->set_field_upload('image','images/products');

  

 

   $output = $crud->render();

  

   $this->load->view('products_v', $output);

  

  }

It's working ok, but I would like to know how can I do when I choose a category, the other select (subcategory) just show subcategories from the same category.

Ex.
Category: Wine

Subcategory:
- Red
- White
- RosÃ©

Hope can help me, thanks in advance!

maru

maru