柔軟な言語選択を設定する

<script>
  function updateSelectedLanguage() {
    const selectElement = document.getElementById('language');
    const selectedValue = selectElement.value;
    const options = selectElement.options;
    for (let i = 0; i < options.length; i++) {
      if (options[i].value === selectedValue) {
        options[i].selected = true;
      } else {
        options[i].selected = false;
      }
    }
    document.getElementById('changeLanguage').click();
  }
</script>