jQuery.easing = {
    easein: function(B, C, A, E, D) {
        return E * (C /= D) * C + A
    },
    easeinout: function(B, C, A, F, E) {
        if (C < E / 2) {
            return 2 * F * C * C / (E * E) + A
        }
        var D = C - E / 2;
        return - 2 * F * D * D / (E * E) + 2 * F * D / E + F / 2 + A
    },
    easeout: function(B, C, A, E, D) {
        return - E * C * C / (D * D) + 2 * E * C / D + A
    },
    expoin: function(B, C, A, F, E) {
        var D = 1;
        if (F < 0) {
            D *= -1;
            F *= -1
        }
        return D * (Math.exp(Math.log(F) / E * C)) + A
    },
    expoout: function(B, C, A, F, E) {
        var D = 1;
        if (F < 0) {
            D *= -1;
            F *= -1
        }
        return D * ( - Math.exp( - Math.log(F) / E * (C - E)) + F + 1) + A
    },
    expoinout: function(B, C, A, F, E) {
        var D = 1;
        if (F < 0) {
            D *= -1;
            F *= -1
        }
        if (C < E / 2) {
            return D * (Math.exp(Math.log(F / 2) / (E / 2) * C)) + A
        }
        return D * ( - Math.exp( - 2 * Math.log(F / 2) / E * (C - E)) + F + 1) + A
    },
    bouncein: function(B, C, A, E, D) {
        return E - jQuery.easing.bounceout(B, D - C, 0, E, D) + A
    },
    bounceout: function(B, C, A, E, D) {
        if ((C /= D) < (1 / 2.75)) {
            return E * (7.5625 * C * C) + A
        } else {
            if (C < (2 / 2.75)) {
                return E * (7.5625 * (C -= (1.5 / 2.75)) * C + 0.75) + A
            } else {
                if (C < (2.5 / 2.75)) {
                    return E * (7.5625 * (C -= (2.25 / 2.75)) * C + 0.9375) + A
                } else {
                    return E * (7.5625 * (C -= (2.625 / 2.75)) * C + 0.984375) + A
                }
            }
        }
    },
    bounceinout: function(B, C, A, E, D) {
        if (C < D / 2) {
            return jQuery.easing.bouncein(B, C * 2, 0, E, D) * 0.5 + A
        }
        return jQuery.easing.bounceout(B, C * 2 - D, 0, E, D) * 0.5 + E * 0.5 + A
    },
    elasin: function(B, D, A, H, G) {
        var E = 1.70158;
        var F = 0;
        var C = H;
        if (D == 0) {
            return A
        }
        if ((D /= G) == 1) {
            return A + H
        }
        if (!F) {
            F = G * 0.3
        }
        if (C < Math.abs(H)) {
            C = H;
            var E = F / 4
        } else {
            var E = F / (2 * Math.PI) * Math.asin(H / C)
        }
        return - (C * Math.pow(2, 10 * (D -= 1)) * Math.sin((D * G - E) * (2 * Math.PI) / F)) + A
    },
    elasout: function(B, D, A, H, G) {
        var E = 1.70158;
        var F = 0;
        var C = H;
        if (D == 0) {
            return A
        }
        if ((D /= G) == 1) {
            return A + H
        }
        if (!F) {
            F = G * 0.3
        }
        if (C < Math.abs(H)) {
            C = H;
            var E = F / 4
        } else {
            var E = F / (2 * Math.PI) * Math.asin(H / C)
        }
        return C * Math.pow(2, -10 * D) * Math.sin((D * G - E) * (2 * Math.PI) / F) + H + A
    },
    elasinout: function(B, D, A, H, G) {
        var E = 1.70158;
        var F = 0;
        var C = H;
        if (D == 0) {
            return A
        }
        if ((D /= G / 2) == 2) {
            return A + H
        }
        if (!F) {
            F = G * (0.3 * 1.5)
        }
        if (C < Math.abs(H)) {
            C = H;
            var E = F / 4
        } else {
            var E = F / (2 * Math.PI) * Math.asin(H / C)
        }
        if (D < 1) {
            return - 0.5 * (C * Math.pow(2, 10 * (D -= 1)) * Math.sin((D * G - E) * (2 * Math.PI) / F)) + A
        }
        return C * Math.pow(2, -10 * (D -= 1)) * Math.sin((D * G - E) * (2 * Math.PI) / F) * 0.5 + H + A
    },
    backin: function(B, C, A, F, E) {
        var D = 1.70158;
        return F * (C /= E) * C * ((D + 1) * C - D) + A
    },
    backout: function(B, C, A, F, E) {
        var D = 1.70158;
        return F * ((C = C / E - 1) * C * ((D + 1) * C + D) + 1) + A
    },
    backinout: function(B, C, A, F, E) {
        var D = 1.70158;
        if ((C /= E / 2) < 1) {
            return F / 2 * (C * C * (((D *= (1.525)) + 1) * C - D)) + A
        }
        return F / 2 * ((C -= 2) * C * (((D *= (1.525)) + 1) * C + D) + 2) + A
    },
    linear: function(B, C, A, E, D) {
        return E * C / D + A
    }
};

(function($) {
    $.fn.lavaLamp = function(o) {
        o = $.extend({
            fx: "linear",
            speed: 500,
            click: function() {}
        },
        o || {});
        return this.each(function() {
            var b = $(this),
            noop = function() {},
            $back = $('<li class="back"><div class="left"></div></li>').appendTo(b),
            $li = $("li", this),
            curr = $("li.current-cat", this)[0] || $($li[0]).addClass("current-cat")[0];
            $li.not(".back").hover(function() {
                move(this)
            },
            noop);
            $(this).hover(noop, 
            function() {
                move(curr)
            });
            $li.click(function(e) {
                setCurr(this);
                return o.click.apply(this, [e, this])
            });
            setCurr(curr);
            function setCurr(a) {
                $back.css({
                    "left": a.offsetLeft + "px",
                    "width": a.offsetWidth + "px"
                });
                curr = a
            };
            function move(a) {
                $back.each(function() {
                    $(this).dequeue()
                }).animate({
                    width: a.offsetWidth,
                    left: a.offsetLeft
                },
                o.speed, o.fx)
            }
        })
    }
})(jQuery)
$(function(){$(".lavalamp").lavaLamp({ fx: "backout", speed: 500 })});