function menuShow(e, divId, offset) {
    var menuDiv = document.getElementById(divId);

    var x=0, y=0;
    if (window.event) {
        var root = document.getElementsByTagName((document.compatMode && document.compatMode == "CSS1Compat") ? "HTML" : "BODY")[0];
        x = root.scrollLeft + window.event.clientX;
        y = root.scrollTop + window.event.clientY;
    } else if (e) {
        x = e.pageX;
        y = e.pageY;
    }
    menuDiv.style.visibility = "hidden";
    menuDiv.style.top = (y + offset)+'px';
    menuDiv.style.left = (x + offset)+'px';
    menuDiv.style.visibility = "visible";
}

function menuHide(divId) {
   	document.getElementById(divId).style.visibility = 'hidden';
}