/**
 * onload時処理
 */
window.onload=function(){
  MM_preloadImages(
     '/menu/top2.jpg'
    ,'/menu/info2.jpg'
    ,'/menu/keidai2.jpg'
    ,'/menu/howa1.jpg'
    ,'/menu/homu2.jpg'
    ,'/menu/gyoji2.jpg'
    ,'/menu/toi2.jpg'
    ,'/menu/tsudoi2.jpg'
    ,'/menu/fuda2.jpg'
    ,'/menu/link2.jpg'
    ,'/info/m_jusyoku2.jpg'
    ,'/info/m_engi2.jpg'
    ,'/info/m_access2.jpg'
    ,'/info/m_toi2.jpg');

}

/**
 *  申し込む内容のボックスのみ表示
 */
function disp_kind_box(ind, cnt){
  
  var b=false;
  
  for(var i=1; i<=cnt; i++){
    var d = document.getElementById("div_kind"+i);
    if(d == null) continue;

    if(i==ind){
      d.style.display = "block";
      b=true;
    }else{
      d.style.display = "none";
    }
  }
  if(b==false){
    document.getElementById("div_kind0").style.display = "block";
  }else{
    document.getElementById("div_kind0").style.display = "none";
  }

  
  switch(ind){
    case "3":
      document.getElementById("before_apply_box").style.display = "block";
      break;
    default:
      document.getElementById("before_apply_box").style.display = "none";
  }
  
  switch(ind){
    case "9":
      document.getElementById("family_box").style.display = "none";
      break;
    default:
      document.getElementById("family_box").style.display = "block";
  }
  switch(ind){
    case "4":
    case "5":
    case "6":
    case "7":
    case "8":
    case "9":
      document.getElementById("dantai_caution").style.display = "block";
      break;
    default:
      document.getElementById("dantai_caution").style.display = "none";
  }

  // 木札
  switch(ind){
    case "4":
    case "5":
    case "6":
    case "8":
    case "2":
    case "3":
    case "9":
    case "7":
      document.getElementById("kihuda").style.display = "block";
      break;
    default:
      document.getElementById("kihuda").style.display = "none";
  }
}


/**
 *  指定されたid属性のdiv boxの表示・非表示を切り替えます。
 *  @param box_id divのID属性
 *  @param flg true:表示 / false:非表示
 */
function disp_box(box_id){
  
  if(document.getElementById(box_id) == null) return;
  
  if(document.getElementById(box_id).style.display=="none"){
    document.getElementById(box_id).style.display = "block";
  }else{
    document.getElementById(box_id).style.display = "none";
  }
}


/**
 *  御礼予定額の計算
 */
function calc_yotei_kingaku(){
  var ninzu = document.frm.ninzu.value.length==0  ? 6 : document.frm.ninzu.value;
  var gaku  = document.frm.price2.value.length==0 ? 0 : document.frm.price2.value;
  if(document.frm.kigan_hoho9[3].checked){
    document.frm.yotei_gaku.value=gaku;
  }else{
    document.frm.yotei_gaku.value = ninzu*gaku;
  }
}