var price = document.form1.price1.value;
var tax = document.form1.taxview.value;
var total_price = parseInt(price, 10) + parseInt(tax, 10);
makeshop_ga_gtag("event", "view_item", {
currency: "JPY",
value: total_price,
items: [{
item_id: "[SYSTEM_CODE]",
item_name: "戸すべりテープ",
item_brand: "…