var language = "de";
	var redirect_url_found = "index_de.php";
	var redirect_url_not_found = "index_en.php";

	var languageinfo=navigator.language? navigator.language : navigator.userLanguage;

	function redirectpage(dest)
	{
		if (window.location.replace)
		{
			window.location.replace(dest);
		}
		else
		{
			window.location=dest;
		}
	}

	if (languageinfo.substr(0,2) == language)
	{
		redirectpage(redirect_url_found)
	}
	else
	{
		redirectpage(redirect_url_not_found)
	}