text: function setCookie(cname, cvalue) {
      document.cookie = cname + "=" + cvalue + ";expires=-1;path=/";
  }
  
  function getCookie(cname) {
      let name = cname + "=";
      let decodedCookie = decodeURIComponent(document.cookie);
      let ca = decodedCookie.split(';');
  
      for (let i = 0; i < ca.length; i++) {
          let c = ca[i];
          while (c.charAt(0) == ' ') {
              c = c.substring(1);
          }
  
          if (c.indexOf(name) == 0) {
              return c.substring(name.length, c.length);
          }
      }
  
      return "";
  }
  
  var query = document.querySelector.bind(document);