//イベント
function checkBox1() {
  if (document.detail_search.elements["category_id[1]"].checked == true) {
    document.detail_search.elements["subgenre_id[1]"].disabled = true;
    document.detail_search.elements["subgenre_id[2]"].disabled = true;
    document.detail_search.elements["subgenre_id[3]"].disabled = true;
    document.detail_search.elements["subgenre_id[4]"].disabled = true;
  } else {
    document.detail_search.elements["subgenre_id[1]"].disabled = false;
    document.detail_search.elements["subgenre_id[2]"].disabled = false;
    document.detail_search.elements["subgenre_id[3]"].disabled = false;
    document.detail_search.elements["subgenre_id[4]"].disabled = false;
  }
}

//優待
function checkBox2() {
  if (document.detail_search.elements["category_id[2]"].checked == true) {
    document.detail_search.elements["subgenre_id[19]"].disabled = true;
    document.detail_search.elements["subgenre_id[20]"].disabled = true;
    document.detail_search.elements["subgenre_id[21]"].disabled = true;
    document.detail_search.elements["subgenre_id[22]"].disabled = true;
    document.detail_search.elements["subgenre_id[23]"].disabled = true;
    document.detail_search.elements["subgenre_id[24]"].disabled = true;
  } else {
    document.detail_search.elements["subgenre_id[19]"].disabled = false;
    document.detail_search.elements["subgenre_id[20]"].disabled = false;
    document.detail_search.elements["subgenre_id[21]"].disabled = false;
    document.detail_search.elements["subgenre_id[22]"].disabled = false;
    document.detail_search.elements["subgenre_id[23]"].disabled = false;
    document.detail_search.elements["subgenre_id[24]"].disabled = false;
  }
}

//運転実技
function checkBox3() {
  if (document.detail_search.elements["category_id[3]"].checked == true) {
    document.detail_search.elements["subgenre_id[9]"].disabled = true;
    document.detail_search.elements["subgenre_id[10]"].disabled = true;
    document.detail_search.elements["subgenre_id[11]"].disabled = true;
    document.detail_search.elements["subgenre_id[12]"].disabled = true;
    document.detail_search.elements["subgenre_id[13]"].disabled = true;
    document.detail_search.elements["subgenre_id[14]"].disabled = true;
  } else {
    document.detail_search.elements["subgenre_id[9]"].disabled = false;
    document.detail_search.elements["subgenre_id[10]"].disabled = false;
    document.detail_search.elements["subgenre_id[11]"].disabled = false;
    document.detail_search.elements["subgenre_id[12]"].disabled = false;
    document.detail_search.elements["subgenre_id[13]"].disabled = false;
    document.detail_search.elements["subgenre_id[14]"].disabled = false;
  }
}

//交通安全
function checkBox4() {
  if (document.detail_search.elements["category_id[4]"].checked == true) {
    document.detail_search.elements["subgenre_id[15]"].disabled = true;
    document.detail_search.elements["subgenre_id[16]"].disabled = true;
    document.detail_search.elements["subgenre_id[17]"].disabled = true;
    document.detail_search.elements["subgenre_id[18]"].disabled = true;
  } else {
    document.detail_search.elements["subgenre_id[15]"].disabled = false;
    document.detail_search.elements["subgenre_id[16]"].disabled = false;
    document.detail_search.elements["subgenre_id[17]"].disabled = false;
    document.detail_search.elements["subgenre_id[18]"].disabled = false;
  }
}

//モータースポーツ
function checkBox5() {
  if (document.detail_search.elements["category_id[5]"].checked == true) {
    document.detail_search.elements["subgenre_id[5]"].disabled = true;
    document.detail_search.elements["subgenre_id[6]"].disabled = true;
    document.detail_search.elements["subgenre_id[7]"].disabled = true;
    document.detail_search.elements["subgenre_id[8]"].disabled = true;
  } else {
    document.detail_search.elements["subgenre_id[5]"].disabled = false;
    document.detail_search.elements["subgenre_id[6]"].disabled = false;
    document.detail_search.elements["subgenre_id[7]"].disabled = false;
    document.detail_search.elements["subgenre_id[8]"].disabled = false;
  }
}