juery treeview ??
/*
 * Treeview 1.5pre - jQuery plugin to hide and show branches of a tree
 * 
 * http://bassistance.de/jquery-plugins/jquery-plugin-treeview/
 * http://docs.jquery.com/Plugins/Treeview
 *
 * Copyright (c) 2007 Jörn Zaefferer
 *
 * Dual licensed under the MIT and GPL licenses:
 * http://www.opensource.org/licenses/mit-license.php
 * http://www.gnu.org/licenses/gpl.html
 *
 * Revision: $Id: jquery.treeview.js 5759 2008-07-01 07:50:28Z joern.zaefferer $
 *
 */

;(function($) {

// TODO rewrite as a widget, removing all the extra plugins
$.extend($.fn, {
swapClass: function(c1, c2) {
var c1Elements = this.filter('.' + c1);
this.filter('.' + c2).removeClass(c2).addClass(c1);
c1Elements.removeClass(c1).addClass(c2);
return this;
},
replaceClass: function(c1, c2) {
return this.filter('.' + c1).removeClass(c1).addClass(c2).end();
},
hoverClass: function(className) {
className = className || "hover";
return this.hover(function() {
$(this).addClass(className);
}, function() {
$(this).removeClass(className);
});
},
heightToggle: function(animated, callback) {
animated ?
this.animate({ height: "toggle" }, animated, callback) :
this.each(function(){
jQuery(this)[ jQuery(this).is(":hidden") ? "show" : "hide" ]();
if(callback)
callback.apply(this, arguments);
});
},
heightHide: function(animated, callback) {
if (animated) {
this.animate({ height: "hide" }, animated, callback);
} else {
this.hide();
if (callback)
this.each(callback);
}
},
prepareBranches: function(settings) {
if (!settings.prerendered) {
// mark last tree items
this.filter(":last-child:not(ul)").addClass(CLASSES.last);
// collapse whole tree, or only those marked as closed, anyway except those marked as open
this.filter((settings.collapsed ? "" : "." + CLASSES.closed) + ":not(." + CLASSES.open + ")").find(">ul").hide();
}
// return all items with sublists
return this.filter(":has(>ul)");
},
applyClasses: function(settings, toggler) {
// TODO use event delegation
this.filter(":has(>ul):not(:has(>a))").find(">span").unbind("click.treeview").bind("click.treeview", function(event) {
// don't handle click events on children, eg. checkboxes
if ( this == event.target )
toggler.apply($(this).next());
}).add( $("a", this) ).hoverClass();

if (!settings.prerendered) {
// handle closed ones first
this.filter(":has(>ul:hidden)")
.addClass(CLASSES.expandable)
.replaceClass(CLASSES.last, CLASSES.lastExpandable);

// handle open ones
this.not(":has(>ul:hidden)")
.addClass(CLASSES.collapsable)
.replaceClass(CLASSES.last, CLASSES.lastCollapsable);

// create hitarea if not present
var hitarea = this.find("div." + CLASSES.hitarea);
if (!hitarea.length)
hitarea = this.prepend("<div class=\"" + CLASSES.hitarea + "\"/>").find("div." + CLASSES.hitarea);
hitarea.removeClass().addClass(CLASSES.hitarea).each(function() {
var classes = "";
$.each($(this).parent().attr("class").split(