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

jQuery(function( $ ){
        $('#slideshow').serialScroll({
                items:'td',
                prev:'#banner #slideshow_prev',
                next:'#banner #slideshow_next',
                offset:-230, //when scrolling to photo, stop 230 before reaching it (from the left)
                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: false //click on the images to scroll to them
        });
});