I’m focusing on wordpress for now as its more suitable to my needs but i thought i’d leave this here.

http://indexhibit.org/forum/thread/2891/

/*Expanding Menus for Indexhibit  *uses jquery  *  *Created by Ross Cairns Mar 2008 modified by Benjamin Ashcroft Jan 2009*/

function expandingMenu(num) {

var speed = 200;

var item_title = $("#menu ul").eq(num).children(":first");
var items = $("#menu ul").eq(num).children().filter(function (index) { return index > 0; });
/* hide items if not active */
if (items.is(".active") == false) {
items.hide();
}

/* add click functions + pointer to title */
item_title.css({cursor:"pointer"}).hover(
function () {
items.slideToggle(speed);
})
item_title.css({cursor:"pointer"}).toggle(
function () {
items.hide(speed);
}, function () {
items.show(speed);
})

}