/*	Expanding Menus for Indexhibit
 *		uses jquery
 *
 *	Created by Ross Cairns  Mar 2008
*/

var last;

function expandingMenu(num) {
	var speed = 500;
	
	var item_title = $("#menu ul").eq(num).children(":first");
	var items = $("#menu ul").eq(num).children().filter(function (index) { return index > 0; });
	
	/* hide items */
	items.hide();

	/* add click functions + pointer to title */
	item_title.css({cursor:"pointer"}).click(
		function () {
			if (last != undefined){
				if(last != items){
					items.show(speed);
				}
				last.hide(speed);
			}
			else{
				items.show(speed);
			}
			last = items;
		}
	)	
}