var boostMaps = {
	targetId: 'index_contents_commonColumn_left_boostMaps',
	imageList: [
		'/img/contents/index_contents_boost_map.gif',
		'/img/contents/index_contents_boost_map_hokkaido.gif',
		'/img/contents/index_contents_boost_map_tohoku.gif',
		'/img/contents/index_contents_boost_map_hokushinetus.gif',
		'/img/contents/index_contents_boost_map_kanto.gif',
		'/img/contents/index_contents_boost_map_tokai.gif',
		'/img/contents/index_contents_boost_map_kinki.gif',
		'/img/contents/index_contents_boost_map_chugoku.gif',
		'/img/contents/index_contents_boost_map_shikoku.gif',
		'/img/contents/index_contents_boost_map_kyushuokinawa.gif'
	],

	change: function(n) {
		document.getElementById(this.targetId).src = this.imageList[n];
	}
}