var urls = {
	en : "http://www.navnet.com/",
	ja : "http://www.navnet.com/jp/"
};

var urlParam = "fixed";

function getBrowserLang() {
	if(document.all) {
		return navigator.browserLanguage;
	} else if(document.getElementById) {
		return navigator.language.substr(0,2);
	}
}

function checkLang() {
	var array = location.search.split("?");
	if (array[1] == urlParam) {
		//alert("fixed page");
		return;
	}
	//alert("get lang");
	//return;
	var brower_lang = getBrowserLang();
	if (brower_lang == "ja") {
		changeLang(brower_lang, false);
	}
}


function changeLang(la, isFixed) {
	//alert("change " + urls[la] + ((isFixed) ? ("?" + urlParam) : ""));
	location.href = urls[la] + ((isFixed) ? ("?" + urlParam) : "");
}