function sleep(ms) {
  return new Promise(
    resolve => setTimeout(resolve, ms)
  );
}
let item = $("tag");
$(item[0]).click();
let c = window.open(item[0].href);
let timing = (Number(item[0].getAttribute("timer")) + Number(2)) * 1000;
console.log(timing);
await sleep(timing);
c.close()