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

	$('#slideshow').serialScroll({
		items:'li',
		prev:'a.prev',
		next:'a.next',
		axis:'x',
		offset:-20, //when scrolling to photo, stop 230 before reaching it (from the left)
		start:0, //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: false //click on the images to scroll to them
	});
});