//プリロード
	var img = new Array();
	img[10] = new Image(); img[10].src = "./img/btn_detail_mailout.gif";
	img[20] = new Image(); img[20].src = "./img/btn_detail_urlout.gif";
	img[30] = new Image(); img[30].src = "./img/btn_detail_mapout.gif";
	img[40] = new Image(); img[40].src = "./img/ig_country_switz_zurichon.jpg";
	img[50] = new Image(); img[50].src = "./img/ig_country_switz_geneveon.jpg";

	img[11] = new Image(); img[11].src = "./img/btn_detail_mailon.gif";
	img[21] = new Image(); img[21].src = "./img/btn_detail_urlon.gif";
	img[31] = new Image(); img[31].src = "./img/btn_detail_mapon.gif";
	img[41] = new Image(); img[41].src = "./img/ig_country_switz01.jpg";
	img[51] = new Image(); img[51].src = "./img/ig_country_switz01.jpg";

	function _in(nam,num){
		document.images[nam].src = img[num].src;
	}
	
	function _out(nam,num){
		document.images[nam].src = img[num].src;
	}