function killDDMenu()
{
    $("the-dd-menu").style.display = "none";
    document.onclick = null;
}

function hideDDMenu()
{
    if(window.canhide){
        setTimeout(
            killDDMenu,
            500);
    }
}

function showDDMenu(id)
{
    foreach(
        function(n){
            var x = n.getAttribute("pid");
            n.style.visibility = (x==id ? "visible" : "hidden");
        },
        filter(
            function(n){ return n.getAttribute("pid") ? true : false; },
            document.getElementsByTagName("TD")));
    $("the-dd-menu").style.display = "";
    if(!document.onclick) document.onclick = killDDMenu;
}

function outDDMenu()
{
    unblockDDMenu();
    setTimeout(
        hideDDMenu,
        1000);
}

function inDDMenu(id)
{
    if(id > 0) showDDMenu(id);
    blockDDMenu();
}

function blockDDMenu()
{
    window.canhide = false;
}

function unblockDDMenu()
{
    window.canhide = true;
}