AJAX Tree Menu allows to load data for submenus "on-the-fly" from the server.
It saves outgoing traffic from the server especially when using big menus. The sample menu has ~450 items.

Move mouse cursor over "Deluxe Tree: XP Style" item.
You'll see "Loading..." message while the submenu is loading from the server.

Supported browsers:
    Windows OS:  IE5+, Firefox, Google Chrome, Safari,
                           Opera 8+, Mozilla, Netscape 7+
    MAC OS:          Firefox, Safari, IE

To enable AJAX Tree Menu use the following menu parameters:

  var tajax=1;     // enables AJAX technology support

Each .js file must contain menuItems variable for the submenu in the following format:

  var tmenuItems = [
    [text, link, icon1, icon2, icon2, tip, target, itemStyle,
      submenuStyle, jsFileName],
  ];

Where jsFileName - .js filename on the server that contains tmenuItems variable for the submenu.