var maps = {
	targetId: 'facility',
	imageList: [
		'http://www.mis.ed.jp/img/facilities/map.gif',
		'http://www.mis.ed.jp/img/facilities/map01.gif',
		'http://www.mis.ed.jp/img/facilities/map02.gif',
		'http://www.mis.ed.jp/img/facilities/map03.gif',
		'http://www.mis.ed.jp/img/facilities/map04.gif',
		'http://www.mis.ed.jp/img/facilities/map05.gif',
		'http://www.mis.ed.jp/img/facilities/map06.gif',
		'http://www.mis.ed.jp/img/facilities/map07.gif',
		'http://www.mis.ed.jp/img/facilities/map08.gif',
		'http://www.mis.ed.jp/img/facilities/map09.gif',
		'http://www.mis.ed.jp/img/facilities/map10.gif',
		'http://www.mis.ed.jp/img/facilities/map11.gif',
		'http://www.mis.ed.jp/img/facilities/map12.gif',
		'http://www.mis.ed.jp/img/facilities/map13.gif',
		'http://www.mis.ed.jp/img/facilities/map14.gif',
		'http://www.mis.ed.jp/img/facilities/map15.gif',
		'http://www.mis.ed.jp/img/facilities/map16.gif',
		'http://www.mis.ed.jp/img/facilities/map17.gif',
		'http://www.mis.ed.jp/img/facilities/map18.gif',
		'http://www.mis.ed.jp/img/facilities/map19.gif',
	],

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