Multiple Level Menus

Simple Tree Menu FF1+ IE5+ Opr7+
This is a unobtrusive Tree Menu script that turns any ordinary list (UL element) into a collapsible tree! Once transformed, the original list and its sublists can be collapsed/expanded at will, with cookies used to optionally persist its state.

HV Menu FF1+ IE5+ Opr7+
-User Submitted
We named this script "HV menu" for its ability to be laid out both horizontally (as a top menu) and vertically (as a side menu), but it might as well be for its highly versatile nature. With support for miltiple sublevels, vertical and horizontal layout, NS6 compatibility, and more, HV menu is one of the best scripts in its field.

All Levels Navigational Menu FF1+ IE6+ Opr8+
All Levels Navigational Menu is a CSS/ HTML list based menu with support for infinite levels of sub menus. It's lightweight and  easy to implement (the menu contents are simply regular HTML lists), with all of the menu links search engine friendly.

Top Navigational Bar III FF1+ IE5+ Opr7+
-User Submitted
An impressive three-level menu that functions in all DHTML browsers, including Mozilla and Opera 6+.

Blm Multi-level Effect menu FF1+ IE5+ Opr7+
-User Submitted
Blm Mult-level effect menu is a JavaScript/ CSS hybrid dropdown menu based on ordinary HTML lists. As its name suggests, it allows for infinite levels of sub menus.

Jim's DHTML Menu v5.7 FF1+ IE5+ Opr7+
-User Submitted
This script creates an absolutely positioned, cross browser navigational bar for your site. Efficient and small in file size, it can be set as either a horizontal or vertical menu, supporting multiple levels.

JsDOMenu FF1+ IE5+ Opr7+
-User Submitted
JsDOMenu is a context menu that pops up when the user "left" or "right" clicks on any blank space in the page. It supports unlimited submenus, and is functional in all modern browsers (IE5+, NS7+, Mozilla etc).

JsDOMenuBar FF1+ IE5+ Opr7+
-User Submitted
jsDOMenuBar is a cross browser horizontal menu bar based on jsDomenu above. It supports unlimited menu bar items, can be set to be draggable, and positioned either absolutely or relatively. jsDOMenuBar is 100% HTML/XHTML valid, and is fully customizable through CSS.

Chained Select menu FF1+ IE5+ Opr7+
A multi-dimensional form select menu, based on Xin's Chained Selects script. Links can be set to open in new window.