function saveCookie(name, value, milliseconds) {
    var expires;
    if (milliseconds) {
        var date = new Date();
        date.setTime(date.getTime() + milliseconds);
        expires = "; expires=" + date.toGMTString();
    } else {
        expires = "";
    }
    document.cookie = name + "=" + value + expires + "; path=/";
}

function loadCookie(name) {
    var value = "";

    var nameEQ = name + "=";
    var ca = document.cookie.split(';');
    for (var i = 0; i < ca.length; i++) {
        var c = ca[i];
        while (c.charAt(0) == ' ') {
            c = c.substring(1, c.length);
        }

        if (c.indexOf(nameEQ) == 0) {
            value = c.substring(nameEQ.length, c.length);
        }
    }

    return value;
}
function deleteCookie(name) {
    saveCookie(name, "", -1);
}