function GetCookieVal (offset) {
    var endstr = document.cookie.indexOf (";", offset);
    if (endstr == -1) {
        endstr = document.cookie.length;
    }
    value = document.cookie.substring(offset, endstr);
    if(value == 'null' || value == '' || value == null) return null;
    else return unescape(value);
}

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 == null) ? "" : ("; expires=" + expires.toGMTString())) +
        ((path == null) ? "" : ("; path=" + path)) +
        ((domain == null) ? "" : ("; domain=" + domain)) +
        ((secure == true) ? "; secure" : "");
}

function DeleteCookie(name) {
    var exp = new Date();
    exp.setTime (exp.getTime() - 1);
    var cval = GetCookie (name);
    if (cval != null) {
        document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
    }
}

function check_in(){
    saveID = GetCookie("save_neoid");
    fm = document.form;

    if (fm.saveid != null && saveID != null && saveID != '') {
        fm.saveid.checked = true;
        fm.userid.value = saveID;
    }
}

function save_id()
{
    fm = document.form;
    if(fm.saveid != null && fm.saveid.checked == true) {
        saveID = document.form.userid.value;

        var thenewdate = new Date ();
        thenewdate.setTime(thenewdate.getTime() + (365 * 24 * 3600 * 1000));

        SetCookie("save_neoid", saveID, thenewdate);
    } else {
        DeleteCookie("save_neoid");
    }
}