[Alexus89]

мм это?

var JwgSlider = function() {
        var a = this;
        this.move = function(b) {
            var c, d;
                if ("number" != typeof b) 
                    c = "right" == b ? this.index += 1 : this.index -= 1;
                else if 
                    (c = b, c > this.index + 1 || c < this.index - 1) 
                return void this.skipToSlide(c);
            
            c == this.slides.length || -1 == c ? (c = -1 == c ? 
            this.slides.length - 1 : 0, 
            this.loopSlide(c)) : (
                d = "-" + 100 * c + "%", 
                this.setIndex(c), 
                this.x.stop(!0, !0).animate({
                    left: d,
                }, function() {
                    a.left = d
                })
                
            )
            
        }
        
     };