text: document.getElementById('cn').onclick = function() {
      localStorage.setItem('language', JSON.stringify("cn"));
      localStorage.setItem('old', JSON.stringify("old"));
      window.location.href="../../../cn/html/set.html";
  };
  
  document.getElementById('en').onclick = function() {
      localStorage.setItem('language', JSON.stringify("en"));
      localStorage.setItem('old', JSON.stringify("old"));
      window.location.href="../../../en/html/set.html";
  };