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

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