Zavření rozevíracího menu

function checkParent(src, dest) {
    while (src!=null) {
        if (src.tagName == dest) return src;
        src = src.parentNode;
        }
    return null;
}

function Menu(e) {
    var event = e || window.event;
    var open = event.target || event.srcElement;
    var el = checkParent(open, "LI");

this.oneSmOnly = true;

    if (null!=el) {
        var pos = 0;
        for (var pos=0; pos<el.childNodes.length; pos++) {
            if ("UL"==el.childNodes[pos].tagName) break;
            }
        if (pos==el.childNodes.length) return;
        }
    else return;

    el = el.childNodes[pos];
    if ("UL"==el.tagName) {
        if (""==el.style.display) {
            el.style.display = "block";
            }
        else {
            el.style.display = "";
            }
        }
    event.cancelBubble = true;
}

document.documentElement.onclick = Menu;