function jidousha_link() {
	var ua = navigator.userAgent;
	if (ua.indexOf("iPhone") > 0 || ua.indexOf("iPad") > 0  || ua.indexOf("Android 2.2") > 0  || ua.indexOf("Android 2.3") > 0) {
		window.location.href='sp/index.html';
	}else{
		window.location.href='jidousha/index.html';
	}
}