var main_url_korean = "korean/main/main.jsp";
var main_url_english = "english/main/main.jsp";
var main_url_japanese = "japanese/main/main.jsp";
var main_url_chinese = "chinese/main/main.jsp";

var expDays = 30;
var exp = new Date();
var cookieTimeToLive = exp.getTime() + (expDays * 24 * 60 * 60 * 1000);
exp.setTime(cookieTimeToLive);

function getCookieVal (offset) {
    var endstr = document.cookie.indexOf (";", offset);
    if (endstr == -1) { endstr = document.cookie.length; }
    return unescape(document.cookie.substring(offset, endstr));
}

function GetCookie (name) {
    var arg = name + "=";
    var alen = arg.length;
    var clen = document.cookie.length;
    var i = 0;
    while (i < clen) {
        var j = i + alen;
        if (document.cookie.substring(i, j) == arg) return getCookieVal (j);
        i = document.cookie.indexOf(" ", i) + 1;
        if (i == 0) break;
    }
    return null;
}
function SetCookie (name, value) {
    var argv = SetCookie.arguments;
    var argc = SetCookie.arguments.length;
    var expires = (argc > 2) ? argv[2] : null;
    var path = (argc > 3) ? argv[3] : null;
    var domain = (argc > 4) ? argv[4] : null;
    var secure = (argc > 5) ? argv[5] : false;
    document.cookie = name + "=" + escape(value) + "; expires=" + exp.toGMTString();
}

function checkLanguage(val) {
        c_value = GetCookie(val);

        if (c_value != null) {
                if (c_value == "korean") { location.href = main_url_korean; }
                else if (c_value == "english") { location.href = main_url_english; }
				else if (c_value == "japanese") { location.href = main_url_japanese; }
				else if (c_value == "chinese") { location.href = main_url_chinese; }
        }
}
function saveMainLanguage() {
        var f = document.main;
        var f_value = f.d_language.value;

        SetCookie("d_mode", f_value);

        if (f_value == "korean") { location.href = main_url_korean; }
        else if (f_value == "english") { location.href = main_url_english; }
		else if (f_value == "japanese") { location.href = main_url_japanese; }
		else if (f_value == "chinese") { location.href = main_url_chinese; }
}

function setLanguage(str) {
        document.main.d_language.value = str;
}