window.addEvent('domready', function(){
	var filterContainer = $('sidebar-nav');
	
	if($chk(filterContainer)){
		var filterItems = filterContainer.getElements('li');
		filterItems.each(function(_li){
			
			if(_li.parentNode.className == 'sidebar-nav'){
				var _opener = _li.getElement('a.opener');
				var _slider = _li.getElement('div.form-checkboxes') || _li.getElement('ul.addnav');
				if (_opener && _slider){
					var mySlide = new Fx.Slide(_slider);
					_opener.setStyle('marginBottom','-4px');
					_slider.parentNode.setStyle('position','relative');
					if (!_li.hasClass('active')) {
						mySlide.hide();
					}
					_opener.onclick = function(){
						_li.toggleClass('active');
						mySlide.toggle();
						return false;
					}
				}
			};
		});
	}
});