public function ajaxProductCatAndDosesAction()
 {
     $this->_helper->layout->disableLayout();
     $item_pack_size = new Model_ItemPackSizes();
     if (isset($this->_request->item_id) && !empty($this->_request->item_id)) {
         $item_pack_size->form_values['pk_id'] = $this->_request->item_id;
         $this->view->category = $item_pack_size->getProductCategory();
     }
     if (isset($this->_request->quantity) && !empty($this->_request->quantity) && !empty($this->_request->itemId)) {
         $quantity = $this->_request->quantity;
         $item_pack_size->form_values['pk_id'] = $this->_request->itemId;
         $doses = $item_pack_size->getProductDoses();
         $this->view->doses = $doses * str_replace(',', '', $quantity) . ' Doses';
     }
 }