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

jQuery(function( $ ){
	$('#screen').serialScroll({
		target:'#sections',
		items:'li',
		prev:'img.prev',
		next:'img.next',
		axis:'x',
		duration:700,
		force:true,
		easing:'easeOutQuart',

		onAfter:function( elem ){
			//'this' is the element being scrolled ($pane) not jqueryfied
		}
	});
});