function showListMenu(e) {
   // var m = document.getElementById("ListMenu");
   // var ev = document.getElementById(e);
   // var t = ev.offsetTop; var l = ev.offsetLeft;
   // while (ev = ev.offsetParent) {
   //     t += ev.offsetTop;
   //    l += ev.offsetLeft;
   // }
   // m.style.left = (l -10) + "px";
   // m.style.top = (t + 18) + "px";
   // m.style.visibility = "visible";
}

function hiddListMenu() {
    var e = document.getElementById("ListMenu");
    var n = document.elementFromPoint(window.event.clientX, window.event.clientY);
    e.style.visibility = isInSelfArea(e, n) ? "visible" : "hidden";
}

function isInSelfArea(a, b) {
    var o = b;
    var HTML = document.getElementsByTagName("HTML")[0];
    var BODY = document.getElementsByTagName("BODY")[0];
    while (o != a && o != BODY && o != HTML) {
        o = o.parentElement;
    }
    return o == a;
}