var url = document.URL;

var Language = browserLanguage();
var LanguageCookie = getCookie("browserLanguage");
if (Language != "ja" && !LanguageCookie ){
	createCookie("browserLanguage", "en");

	if ( !url.match('/english/') ) {
		location.href = "http://www.jsao.org/english/";
	}

}


/* クッキーの作成 */
function createCookie(name, value) {
	document.cookie = name+"="+value+"; path=/";
}

/* クッキーの取得 */
function getCookie(name) {
	if (!name || !document.cookie) return;
	var cookies = document.cookie.split("; ");
	for (var i = 0; i < cookies.length; i++) {
		var str = cookies[i].split("=");
		if (str[0] != name) continue;
		return unescape(str[1]);
	}
	return;
}

/* ブラウザー言語判別 */
function browserLanguage() {
	try {
		return (navigator.browserLanguage || navigator.language || navigator.userLanguage).substr(0,2)
	}
	catch(e) {
		return undefined;
	}
}