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'; } }