(function ($) {
    $.fn.jcarousellite = function (o) {
        o = $.extend({
            btnprev: null,
            btnnext: null,
            btngo: null,
            mousewheel: false,
            auto: null,
            speed: 200,
            easing: null,
            vertical: false,
            circular: true,
            visible: 4,
            start: 0,
            scroll: 1,
            beforestart: null,
            afterend: null,
            height: 130,
            width: 210,
            must: false
        },
        o || {});
        return this.each(function () {
            var b = false,
            animcss = o.vertical ? "top" : "left",
            sizecss = o.vertical ? "height" : "width";
            var c = $(this),
			ul = $(".g-pic", c),
            tli = $(".g-pic-item", ul),
            tl = tli.size(),
            v = o.visible;
            if (o.circular) {
                ul.prepend(tli.slice(tl - v).clone()).append(tli.slice(0, v).clone());
                o.start += v;
            }
            var f = $(".g-pic-item", ul),
            itemlength = f.size(),
            curr = o.start;
            f.eq(curr).addclass("g-pic-item-active");
            c.css("visibility", "visible");
            f.css("float", o.vertical ? "none" : "left").children().css("overflow", "hidden");
            ul.css("margin", "0").css("padding", "0").css("position", "relative").css("list-style-type", "none").css("z-index", "1");
            c.css("overflow", "hidden").css("position", "relative").css("z-index", "2").css("left", "0px");
            var _h = height(f) > 0 ? height(f) : o.height;
            var _w = width(f) > 0 ? width(f) : o.width;

            var g = o.vertical ? _h : _w;
            if (o.must) {
                g = o.vertical ? o.height : o.width;
            }
            var h = g * itemlength;
            var j = g * v;
            if (o.must) {
                f.css("width", o.width).css("height", o.height);
            }
            else {
                f.css("width", f.width() > 0 ? f.width() : _w).css("height", f.height() > 0 ? f.height() : _h);
            }
            ul.css(sizecss, h + "px").css(animcss, -(curr * g));
            c.css(sizecss, j + "px");
            if (o.btnprev) $(o.btnprev).click(function () {
                return go(curr - o.scroll);
            });
            if (o.btnnext) $(o.btnnext).click(function () {
                return go(curr + o.scroll);
            });
            if (o.btngo) $.each(o.btngo,
            function (i, a) {
                $(a).click(function () {
                    return go(o.circular ? o.visible + i : i);
                })
            });
            if (o.mousewheel && c.mousewheel) c.mousewheel(function (e, d) {
                return d > 0 ? go(curr - o.scroll) : go(curr + o.scroll)
            });
            if (o.auto) {
                var gd = setinterval(function () {
                    go(curr + o.scroll)
                },
                o.speed);
                f.hover(function () {
                    clearinterval(gd);
                }, function () {
                    gd = setinterval(function () {
                        go(curr + o.scroll)
                    },
                o.speed);
                })
            }
            function vis() {
                return f.slice(curr).slice(0, v)
            };
            function go(a) {
                if (!b) {
                    if (o.beforestart) o.beforestart.call(this, vis());
                    if (o.circular) {
                        if (a <= o.start - v - 1) {
                            ul.css(animcss, -((itemlength - (v * 2)) * g) + "px");
                            curr = a == o.start - v - 1 ? itemlength - (v * 2) - 1 : itemlength - (v * 2) - o.scroll
                        } else if (a >= itemlength - v + 1) {
                            ul.css(animcss, -((v) * g) + "px");
                            curr = a == itemlength - v + 1 ? v + 1 : v + o.scroll
                        } else curr = a
                    } else {
                        if (a < 0 || a > itemlength - v) return;
                        else curr = a
                    }
                    b = true;
                    ul.animate(animcss == "left" ? {
                        left: -(curr * g)
                    } : {
                        top: -(curr * g)
                    },
                    o.speed, o.easing,
                    function () {
                        if (o.afterend) o.afterend.call(this, vis());
                        b = false
                    });
                    if (!o.circular) {
                        $(o.btnprev + "," + o.btnnext).removeclass("disabled");
                        $((curr - o.scroll < 0 && o.btnprev) || (curr + o.scroll > itemlength - v && o.btnnext) || []).addclass("disabled")
                    }
                    f.removeclass("g-pic-item-active").eq(curr).addclass("g-pic-item-active");
                }
                return false
            }
        })
    };
    function css(a, b) {
        return parseint($.css(a[0], b)) || 0;
    };
    function width(a) {
        if (!a || a.length == 0) {
            return 0;
        }
        return a[0].offsetwidth + css(a, 'marginleft') + css(a, 'marginright');
    };

    function height(a) {
        if (!a || a.length == 0) {
            return 0;
        }
        return a[0].offsetheight + css(a, 'margintop') + css(a, 'marginbottom');
    }
})(jquery);