function showMenu(name)
{
    if(document.layers)
        document.layers[name + '_menu'].display = "";
    else if(document.all)
        document.all[name + '_menu'].style.display = "";
    else if(document.getElementById)
        document.getElementById(name + '_menu').style.display = "";
}


function hideMenu(name)
{
    if(document.layers)
        document.layers[name + '_menu'].display = "none";
    else if(document.all)
        document.all[name + '_menu'].style.display = "none";
    else if(document.getElementById)
        document.getElementById(name + '_menu').style.display = "none";
}