/* 
Simple JQuery menu.
HTML structure to use:

Notes: 

1: each menu MUST have an ID set. It doesn't matter what this ID is as long as it's there.
2: each menu MUST have a class 'menu' set. If the menu doesn't have this, the JS won't make it dynamic

Optional extra classnames:

noaccordion : no accordion functionality
collapsible : menu works like an accordion but can be fully collapsed
expandfirst : first menu item expanded at page load


Copyright 2008 by Marco van Hylckama Vlieg

web: http://www.i-marco.nl/weblog/
email: marco@i-marco.nl

Free for non-commercial use
*/
var elementAux=null;
var idAux;

function initMenus() {
	jQuery('ul.menu ul').hide();
	jQuery.each(jQuery('ul.menu'), function(){
		jQuery('#' + this.id + '.expandfirst ul:first').show();
	});
	jQuery('ul.menu li a').click(
		function() {			
			if(jQuery('#' + this.parentNode.parentNode.id).hasClass('menu')){	
				if (elementAux != null){
					if((elementAux.is('ul')) && (elementAux.is(':visible')) && (this.parentNode.id != idAux)) {
						elementAux.slideUp('normal');
					}
				}
			}
			elementAux = jQuery(this).next();
			idAux = this.parentNode.id;
			var checkElement = jQuery(this).next();
			var parent = this.parentNode.parentNode.id;

			if(jQuery('#' + parent).hasClass('noaccordion')) {
				jQuery(this).next().slideToggle('normal');
				return false;
			}
			if((checkElement.is('ul')) && (checkElement.is(':visible'))) {
				if(jQuery('#' + parent).hasClass('collapsible')) {
					jQuery('#' + parent + ' ul:visible').slideUp('normal');
				}
				return false;
			}
			if((checkElement.is('ul')) && (!checkElement.is(':visible'))) {
				jQuery('#' + parent + ' ul:visible').slideUp('normal');
				checkElement.slideDown('normal');
				return false;
			}
		}
	);
}

function muda(num){
var pag = 'conteudo/'+num+'.html';
new Ajax.Updater('descricao',pag);
}

jQuery(document).ready(
		function() {
			initMenus();
			new Ajax.Updater('descricao','conteudo/1.html');
		}
);