window.onload = () => {
  var monStockage = localStorage;
  if(localStorage.getItem('type_sondage') == undefined) {
    localStorage.setItem('type_sondage', 'classique');
  }

  document.querySelector('#type_sondage').addEventListener('change', function() {
    const selectedType = this.options[this.selectedIndex].text;
    localStorage.setItem('type_sondage', type_sondage);
    console.log(selectedType);
    if(selectedType == "classique") {
      document.querySelector('#next').href = "reponses.html";
    } else {
      document.querySelector('#next').href = "dates.html";
    }
    console.log(document.querySelector('#next'))
  })
}