jQuery.easing.easeOutQuart = function (x, t, b, c, d) {
return -c * ((t=t/d-1)*t*t*t - 1) + b;
};

jQuery(function( $ ){

$('.w').serialScroll({
		items:'.i',
		prev:'span.prev',
		next:'span.next',
		start:1, //as we are centering it, start at the 2nd
		duration:1200,
		force:true,
		stop:true,
		lock:false,
		cycle:false, //don't pull back once you reach the end
		easing:'easeOutQuart', //use this easing equation for a funny effect
		jump: true //click on the images to scroll to them
	});
	
});