$.fn.cycle.transitions.scrollHorz = function($cont, $slides, opts) {
    $cont.css('overflow','hidden').width();
    opts.before.push(function(curr, next, opts, fwd) {
        fwd = !fwd;  //  <--  add this line!!
        $.fn.cycle.commonReset(curr,next,opts);
        opts.cssBefore.left = fwd ? (next.cycleW-1) : (1-next.cycleW);
        opts.animOut.left = fwd ? -curr.cycleW : curr.cycleW;
        });
    opts.cssFirst = { left: 0 };
    opts.cssBefore= { top: 0 };
    opts.animIn   = { left: 0 };
    opts.animOut  = { top: 0 };
};