hidden('code_id', $selected_id);
-text_row(_("UPC/EAN code:"), 'item_code', null, 20, 21);
+text_row(_("UPC/EAN code:"), 'item_code', null, 20, 20);
qty_row(_("Quantity:"), 'quantity', null, '', $units, $dec);
text_row(_("Description:"), 'description', null, 50, 200);
stock_categories_list_row(_("Category:"), 'category_id', null);