function toggleMenu(divName) {
    var c = document.getElementById(divName);
    if (c) {
        if (c.style.display == "none" || c.style.display == "") {
            c.style.display = "block";
        } else {
            c.style.display = "none";
        }
    }
    return false;
}
function downMenu(divName) {
    var c = document.getElementById(divName);
    if (c) {
            c.style.display = "none";
    }
    return false;
}