var application = {
	initFolderNav: function(selector){
		var items = $$(selector);
		
		items.each(function(item){
			var contents = item.next();
			
			if(contents){
				contents.hide();
				
				item.observe('click', function(event){
					event.stop();
					item.up().toggleClassName('open');
					contents.toggle();
				});
			}
		});
	}
}

document.observe('dom:loaded', function(){
	application.initFolderNav('#folderNav li a');
});