var menu;

window.onload = function()
{
    menu = make_menu('menu', {mode:'top_link', 
                              callback_activate: menu_activate,
                              callback_deactivate: menu_deactivate
                              });
    //tree = make_tree('catalog_index', {listtype:'ul', 
    //                          callback_activate: tree_activate,
    //                          callback_deactivate: tree_deactivate
    //                          });
    var el = document.getElementById('messageclosebutton');
    if (el) el.focus();
}


window.onunload = function()
{
    destroy_menu('menu');
}

document.onclick = function()
{
    if (menu) deactivate_menu(menu);
}

function menu_activate(node)
{
    var div = node.a.parentNode;
    // if (div.className=='item') div.style.background = '#558e51';
}

function menu_deactivate(node)
{
    var div = node.a.parentNode;
    // if (div.className=='item') div.style.background = '#558e51';
}

function tree_activate(node)
{
    // if (node.id=='selected') node.style.background = '#aaaaaa';
    // else if (node.style) node.style.background = '#eeeeee';
}

function tree_deactivate(node)
{
    // if (node.id=='selected') node.style.background = '#aaaaaa';
    // else if (node.style) node.style.background = '#eeeeee';
}