Tab with fade effect

JavaScript
1

hi all… i need help to make this tab changing with fade in or fade out…

(function($) {
$(function() {

	$('ul.tabs').each(function() {
		$(this).find('li').each(function(i) {
			$(this).click(function(){
				$(this).addClass('current').siblings().removeClass('current')
				.parents('div.section').find('div.box').hide().end().find('div.box:eq('+i+')').fadeIn(150);
				$("h1").text($(this).attr("title")).addClass("centered");
				Cufon.replace('h1.pageHeading, #slidecaption-grande,.comment div', { fontFamily: 'Bebas Neue'});
			});
		});
	});

})
})(jQuery)

id try to put in fadeIn command there but still not working…

Thanks…

bulp