static/menu.js

  // Show user registration page
  function showUserRegister() {
    fetch("/reset");
    window.location.href = "userregister";
  }

  // Show recorder page
  function showRecorder() {
    window.location.href = "index";
  }

  // Show results page
  function showResults() {
    window.location.href = "feedback";
  }

  // Show talk detail page
  function showTalkDetail() {
    window.location.href = "talk_detail";
  }

  // Reset action page
  function resetAction() {
    window.location.href = "reset_html";
  }

  // Toggle hamburger menu visibility
  function toggleMenu(event) {
    event.stopPropagation();  // Prevents click event from propagating to the document
    const menu = document.getElementById("menu");
    menu.classList.toggle("open");
  }

  // Close the menu if clicked outside
  function closeMenu(event) {
    const menu = document.getElementById("menu");
    if (
      menu.classList.contains("open") &&
      !menu.contains(event.target) &&
      !event.target.closest("#menuButton")
    ) {
      menu.classList.remove("open");
    }
  }

  // Add event listener for closing the menu when clicking outside
  document.addEventListener("click", closeMenu);

  // Show recorder page 名前に気を付けて！
  document.getElementById("add-btn").addEventListener("click", showRecorder);