text: let current_url = window.location.href;
  
  var TurnOn = (index) => {
      if (!(current_url.includes(`&start=${index - 1}`))) {
          console.log("redirect to 2nd page ....................");
          window.open(`${current_url}&start=1`, "_self");
      }
  }
  
  // Turn on/off
  TurnOn(2);