Event.observe(window, 'load', pageOpen, true)

function pageOpen() {
  for(var i=0; i<5; i++){
    if($$('*.selectB_' + i)[0]){
      change_item(i,0);
    }
  }
}

function change_item(target,pos) {
  var sid = _variables.sid;
  var TargetSelect = $$('*.selectB_' + target);
  var type = TargetSelect[pos].selectedIndex;
  var aid = TargetSelect[pos].getValue();
  var image_code = _variables.item_info[aid].image_code;
  var item_name = _variables.item_info[aid].name;
  var price = new Number(_variables.item_info[aid].shop_price);
  var sum = new Number(_variables.item_info[aid].shop_sum);
  price_string = price.commify();
  sum_string = sum.commify();
  $$('*._link_cart_' +target).each(function(obj){
      obj.href = 'https://www.moshimo.com/cart/add?shop_id=' + sid + '&article_id=' + aid;
  });
  $$('*._link_detail_' +target).each(function(obj){
    obj.href = 'https://www.moshimo.com/article/' + sid + '/' + aid;
  });
  $$('*.selectB_' +target).each(function(obj){
    obj.selectedIndex = type;
  });
  $$('*._item_price_' +target).each(function(obj){
    obj.innerHTML = price_string;
  });
  $$('*._item_sum_' +target).each(function(obj){
    obj.innerHTML = sum_string;
  });
  $$('*._item_image_' +target).each(function(obj){
    obj.src = '/item_image/' + image_code + '/1/r.jpg';
    obj.alt = item_name
  });
  $$('*._item_name_' +target).each(function(obj){
    obj.innerHTML = item_name;
  });
}