function getCookie(name) {
    var pairs = document.cookie.split("; ");
    for (i = 0; i < pairs.length; i++) {
        pair = pairs[ i ].split("=");
        if (pair[ 0 ] == name) return unescape(pair[ 1 ]);
    }
    return null;
}

function setCookie(name, value) {
    document.cookie = name+"="+escape(value)+"; path=/";
}

function deleteCookie(name) {
    document.cookie = name+"=; path=/; expires=Thu, 01-Jan-1970 00:00:01 GMT";
}

function cookiesEnabled(name) {
    setCookie(name, 1);
    var t = getCookie(name);
    deleteCookie(name);
    return t;
}