(function(a) {
    a.fn.bPopup = function(i, k) {
        function u() {
            c.css({
                left: b.scrollLeft() + g,
                position: "absolute",
                top: b.scrollTop() + e,
                "z-index": o.zIndex
            }).appendTo(o.appendTo).hide(function() {
                a.isFunction(o.onOpen) && o.onOpen.call(c);
                if (o.loadUrl != null) {
                    o.contentContainer = o.contentContainer == null ? c: a(o.contentContainer);
                    switch (o.content) {
                    case "iframe":
                        a('<iframe width="100%" height="100%"></iframe>').attr("src", o.loadUrl).appendTo(o.contentContainer);
                        break;
                    default:
                        o.contentContainer.load(o.loadUrl)
                    }
                }
            }).fadeIn(o.fadeSpeed,
            function() {
                a.isFunction(k) && k()
            });
            v()
        }
        function j() {
            o.modal && a("#bModal").fadeOut(o.fadeSpeed,
            function() {
                a("#bModal").remove()
            });
            c.fadeOut(o.fadeSpeed,
            function() {
                o.loadUrl != null && o.content != "xlink" && o.contentContainer.empty()
            });
            o.scrollBar || a("html").css("overflow", "auto");
            a("." + o.closeClass).unbind("click");
            a("#bModal").unbind("click");
            b.unbind("keydown.bPopup");
            f.unbind(".bPopup");
            c.data("bPopup", null);
            a.isFunction(o.onClose) && setTimeout(function() {
                o.onClose.call(c)
            },
            o.fadeSpeed);
            return false
        }
        function w() {
            if (m || x) {
                var d = [b.height(), b.width()];
                return {
                    "background-color": o.modalColor,
                    height: d[0],
                    left: l(),
                    opacity: 0,
                    position: "absolute",
                    top: 0,
                    width: d[1],
                    "z-index": o.zIndex - 1
                }
            } else return {
                "background-color": o.modalColor,
                height: "100%",
                left: 0,
                opacity: 0,
                position: "fixed",
                top: 0,
                width: "100%",
                "z-index": o.zIndex - 1
            }
        }
        function v() {
            a("." + o.closeClass).bind("click", j);
            o.modalClose && a("#bModal").bind("click", j).css("cursor", "pointer");
            if (o.follow[0] || o.follow[1]) f.bind("scroll.bPopup",
            function() {
                c.stop().animate({
                    left: o.follow[1] ? b.scrollLeft() + g: g,
                    top: o.follow[0] ? b.scrollTop() + e: e
                },
                o.followSpeed);
            }).bind("resize.bPopup",
            function() {
                if (o.modal && m) {
                    var d = [b.height(), b.width()];
                    n.css({
                        height: d[0],
                        width: d[1],
                        left: l()
                    })
                }
                h = p(c, o.amsl);
                if (o.follow[0]) e = q ? b.scrollTop() + o.position[0] : b.scrollTop() + h[0];
                if (o.follow[1]) g = r ? b.scrollLeft() + o.position[1] : b.scrollLeft() + h[1];
                c.stop().animate({
                    left: g,
                    top: e
                },
                o.followSpeed)
            });
            o.escClose && b.bind("keydown.bPopup",
            function(d) {
                d.which == 27 && j()
            })
        }
        function l() {
            return f.width() < a("body").width() ? 0 : (a("body").width() - f.width()) / 2
        }
        function p(d, y) {
            var s = (f.height() - d.outerHeight(true)) / 2 - y,
            z = (f.width() - d.outerWidth(true)) / 2 + l();
            return [s < 20 ? 20 : s, z]
        }
        if (a.isFunction(i)) {
            k = i;
            i = null
        }
        o = a.extend({},
        a.fn.bPopup.defaults, i);
        o.scrollBar || a("html").css("overflow", "hidden");
        var c = a(this),
        n = a('<div id="bModal"></div>'),
        b = a(document),
        f = a(window),
        h = p(c, o.amsl),
        q = o.position[0] != "auto",
        r = o.position[1] != "auto",
        e = q ? o.position[0] : h[0],
        g = r ? o.position[1] : h[1],
        t = navigator.userAgent.toLowerCase(),
        x = t.indexOf("iphone") != -1,
        m = /msie 6/i.test(t) && typeof window.XMLHttpRequest != "object";
        this.close = function() {
            o = c.data("bPopup");
            j()
        };
        return this.each(function() {
            if (!c.data("bPopup")) {
                o.modal && n.css(w()).appendTo(o.appendTo).animate({
                    opacity: o.opacity
                },
                o.fadeSpeed);
                c.data("bPopup", o);
                u()
            }
        })
    };
    a.fn.bPopup.defaults = {
        amsl: 50,
        appendTo: "body",
        closeClass: "bClose",
        content: "ajax",
        contentContainer: null,
        escClose: true,
        fadeSpeed: 250,
        follow: [true, true],
        followSpeed: 500,
        loadUrl: null,
        modal: true,
        modalClose: true,
        modalColor: "#000",
        onClose: null,
        onOpen: null,
        opacity: 0.7,
        position: ["auto", "auto"],
        scrollBar: true,
        zIndex: 9999
    }
})(jQuery);