LightboxOptions = Object.extend({
    overlayOpacity: 0.8,
    animate: true,
    resizeSpeed: 400,
    borderSize: 10,
    loop: false,
    allowSave: false,
    slideshowAutoplay: false,
    slideshowInterval: 3000,
    slideshowAutoclose: true,
    labelImage: "Image",
    labelOf: "of"
}, window.LightboxOptions || {});
var Lightbox = Class.create();
Lightbox.prototype = {
    imageArray: [],
    activeImage: undefined,
    initialize: function () {
        var g, c, f, e, a, d;
        this.updateImageList();
        this.keyboardAction = this.keyboardAction.bindAsEventListener(this);
        if (LightboxOptions.animate) {
            this.overlayDuration = LightboxOptions.resizeSpeed / 1000;
            this.resizeDuration = LightboxOptions.resizeSpeed / 1000
        } else {
            this.overlayDuration = 0;
            this.resizeDuration = 0
        }
        var h = (LightboxOptions.animate ? 250 : 1) + "px";
        var j = $$("body")[0];
        j.appendChild(Builder.node("div", {
            id: "overlay"
        }));
        j.appendChild(Builder.node("div", {
            id: "lbLightbox"
        }, [Builder.node("div", {
            id: "lbOuterImageContainer"
        }, Builder.node("div", {
            id: "lbImageContainer"
        }, [Builder.node("img", {
            id: "lbLightboxImage"
        }), Builder.node("div", {
            id: "lbHoverNav"
        }, [Builder.node("a", {
            id: "prevLink",
            href: "#"
        }), Builder.node("a", {
            id: "nextLink",
            href: "#"
        })]), Builder.node("div", {
            id: "lbLoading"
        }, Builder.node("a", {
            id: "loadingLink",
            href: "#"
        }))])), Builder.node("div", {
            id: "lbImageDataContainer"
        }, Builder.node("div", {
            id: "lbImageData"
        }, [Builder.node("div", {
            id: "lbImageDetails"
        }, [Builder.node("span", {
            id: "lbNumberDisplay"
        }), Builder.node("span", {
            id: "lbCaption"
        }), Builder.node("span", {
            id: "lbPresent"
        })]), Builder.node("div", {
            id: "lbBottomNav"
        }, [Builder.node("a", {
            id: "closeLink",
            href: "#"
        }), Builder.node("a", {
            id: "playLink",
            href: "#"
        }), Builder.node("a", {
            id: "pauseLink",
            href: "#"
        }), Builder.node("a", {
            id: "saveLink",
            href: "#",
            target: "_blank"
        })])]))]));
        $("overlay").hide().observe("click", (function () {
            this.end()
        }).bind(this));
        $("lbLightbox").hide().observe("click", (function (k) {
            if (k.element().id == "lbLightbox") {
                this.end()
            }
        }).bind(this));
        $("lbOuterImageContainer").setStyle({
            width: h,
            height: h
        });
        $("prevLink").observe("click", (function (k) {
            k.stop();
            this.previous()
        }).bindAsEventListener(this));
        $("nextLink").observe("click", (function (k) {
            k.stop();
            this.next()
        }).bindAsEventListener(this));
        $("loadingLink").observe("click", (function (k) {
            k.stop();
            this.end()
        }).bind(this));
        $("playLink").observe("click", (function (k) {
            k.stop();
            this.play()
        }).bindAsEventListener(this));
        $("pauseLink").observe("click", (function (k) {
            k.stop();
            this.pause()
        }).bindAsEventListener(this));
        $("closeLink").observe("click", (function (k) {
            k.stop();
            this.end()
        }).bind(this));
        var b = this;
        (function () {
            var k = "overlay lbLightbox lbOuterImageContainer lbImageContainer lbLightboxImage lbHoverNav prevLink nextLink lbLoading loadingLink lbImageDataContainer lbImageData lbImageDetails lbCaption lbNumberDisplay lbPresent lbBottomNav playLink pauseLink saveLink closeLink";
            $w(k).each(function (l) {
                b[l] = $(l)
            })
        }).defer()
    },
    updateImageList: function () {
        this.updateImageList = Prototype.emptyFunction;
        document.observe("click", (function (a) {
            var b = a.findElement("a[rel^=lightbox]") || a.findElement("area[rel^=lightbox]");
            if (b) {
                b.rel.match(/present.+/) ? this.presentationMode = true : this.presentationMode = false;
                b.rel.match(/slideshow.+/) ? this.slideshowMode = true : this.slideshowMode = false;
                this.slideshowActive = LightboxOptions.slideshowAutoplay && this.slideshowMode;
                a.stop();
                this.start(b)
            }
        }).bind(this))
    },
    start: function (f) {
        $$("select", "object", "embed").each(function (g) {
            g.style.visibility = "hidden"
        });
        var c = this.getPageSize();
        $("overlay").setStyle({
            width: c[0] + "px",
            height: c[1] + "px"
        });
        new Effect.Appear(this.overlay, {
            duration: this.overlayDuration,
            from: 0,
            to: LightboxOptions.overlayOpacity
        });
        this.imageArray = [];
        var b = 0;
        if ((f.rel == "lightbox")) {
            this.imageArray.push([f.href, f.title])
        } else {
            this.imageArray = $$(f.tagName + '[href][rel="' + f.rel + '"]').collect(function (g) {
                return [g.href, g.title]
            }).uniq();
            while (this.imageArray[b][0] != f.href) {
                b++
            }
        }
        var a = document.viewport.getScrollOffsets();
        var e = a[1] + (document.viewport.getHeight() / 30);
        var d = a[0];
        this.lbLightbox.setStyle({
            top: e + "px",
            left: d + "px"
        }).show();
        this.changeImage(b)
    },
    previous: function () {
        this.changeImage(this.prevImage)
    },
    next: function () {
        this.changeImage(this.nextImage)
    },
    changeImage: function (b) {
        this.activeImage = b;
        LightboxOptions.loop = LightboxOptions.loop && (this.imageArray.length > 1);
        this.prevImage = (this.activeImage || (LightboxOptions.loop ? this.imageArray.length : 0)) - 1;
        this.nextImage = ((this.activeImage + 1) % this.imageArray.length) || (LightboxOptions.loop ? 0 : -1);
        if (LightboxOptions.animate) {
            this.lbLoading.show()
        }
        this.lbLightboxImage.hide();
        this.lbHoverNav.hide();
        this.prevLink.hide();
        this.nextLink.hide();
        this.lbImageDataContainer.setStyle({
            opacity: 0.0001
        });
        this.lbImageDataContainer.hide();
        this.lbNumberDisplay.hide();
        var a = new Image();
        a.onload = (function () {
            this.lbLightboxImage.src = this.imageArray[this.activeImage][0];
            this.lbLightboxImage.width = a.width;
            this.lbLightboxImage.height = a.height;
            this.resizeImageContainer(a.width, a.height)
        }).bind(this);
        a.src = this.imageArray[this.activeImage][0];
        if (LightboxOptions.allowSave) {
            this.saveLink.setAttribute("href", this.imageArray[this.activeImage][0]);
            this.saveLink.setStyle({
                display: ""
            })
        } else {
            this.saveLink.setStyle({
                display: "none"
            })
        }
    },
    resizeImageContainer: function (e, f) {
        var h = this.lbOuterImageContainer.getWidth();
        var c = this.lbOuterImageContainer.getHeight();
        var g = (e + LightboxOptions.borderSize * 2);
        var k = (f + LightboxOptions.borderSize * 2);
        var l = (g / h) * 100;
        var b = (k / c) * 100;
        var j = h - g;
        var a = c - k;
        if (a != 0) {
            new Effect.Scale(this.lbOuterImageContainer, b, {
                scaleX: false,
                duration: this.resizeDuration,
                queue: "front"
            })
        }
        if (j != 0) {
            new Effect.Scale(this.lbOuterImageContainer, l, {
                scaleY: false,
                duration: this.resizeDuration,
                delay: this.resizeDuration
            })
        }
        var d = 0;
        if ((a == 0) && (j == 0)) {
            d = 100;
            if (Prototype.Browser.IE) {
                d = 250
            }
        }(function () {
            this.prevLink.setStyle({
                height: f + "px"
            });
            this.nextLink.setStyle({
                height: f + "px"
            });
            this.lbImageDataContainer.setStyle({
                width: g + "px"
            });
            this.showImage()
        }).bind(this).delay(d / 1000)
    },
    showImage: function () {
        this.lbLoading.hide();
        new Effect.Appear(this.lbLightboxImage, {
            duration: this.resizeDuration,
            queue: "end",
            afterFinish: (function () {
                this.updateDetails()
            }).bind(this)
        });
        this.preloadNeighborImages()
    },
    toInt: function (a) {
        return parseInt(a.replace(/\D/g, ""))
    },
    updateDetails: function () {
        this.lbNumberDisplay.update("");
        this.lbCaption.update(" ");
        if (this.imageArray[this.activeImage][1] != "") {
            this.lbCaption.update(this.imageArray[this.activeImage][1]).show()
        }
        if (this.imageArray.length > 1) {
            this.lbNumberDisplay.update(LightboxOptions.labelImage + " " + (this.activeImage + 1) + " " + LightboxOptions.labelOf + "  " + this.imageArray.length).show()
        }
        if (this.presentationMode) {
            this.lbNumberDisplay.setStyle({
                display: "none"
            });
            this.lbPresent.update("").setStyle({
                display: ""
            });
            for (i = 0; i < this.imageArray.length; i++) {
                var b = this.activeImage == i ? "act" : "no";
                var a = new Element("a", {
                    id: "pmi" + (i + 1),
                    "class": b,
                    href: "#"
                });
                i < 9 ? a.update("0" + (i + 1)) : a.update(i + 1);
                a.observe("click", (function (e) {
                    e.stop();
                    var d = Event.findElement(e, "a");
                    var c = this.toInt(d.id) - 1;
                    this.pause();
                    this.changeImage(c)
                }).bindAsEventListener(this));
                this.lbPresent.insert({
                    bottom: a
                })
            }
        } else {
            this.lbNumberDisplay.setStyle({
                display: ""
            });
            this.lbPresent.setStyle({
                display: ""
            })
        }
        this.playLink.setStyle({
            display: "none"
        });
        this.pauseLink.setStyle({
            display: "none"
        });
        if (this.slideshowMode) {
            clearTimeout(this.slideshowTimer);
            if (this.slideshowActive) {
                this.pauseLink.setStyle({
                    display: ""
                });
                if (this.activeImage != (this.imageArray.length - 1)) {
                    this.slideshowTimer = setTimeout(this.next.bind(this), LightboxOptions.slideshowInterval)
                } else {
                    if (LightboxOptions.slideshowAutoclose) {
                        this.slideshowTimer = setTimeout(this.end.bind(this), LightboxOptions.slideshowInterval)
                    } else {
                        if (LightboxOptions.loop) {
                            this.slideshowTimer = setTimeout(this.changeImage.bind(this, 0), LightboxOptions.slideshowInterval)
                        } else {
                            this.pause()
                        }
                    }
                }
            } else {
                this.playLink.setStyle({
                    display: ""
                })
            }
        }
        new Effect.Parallel([new Effect.SlideDown(this.lbImageDataContainer, {
            sync: true,
            duration: this.resizeDuration,
            from: 0,
            to: 1
        }), new Effect.Appear(this.lbImageDataContainer, {
            sync: true,
            duration: this.resizeDuration
        })], {
            duration: this.resizeDuration,
            afterFinish: (function () {
                var c = this.getPageSize();
                this.overlay.setStyle({
                    width: c[0] + "px",
                    height: c[1] + "px"
                });
                this.updateNav()
            }).bind(this)
        })
        var c = this.getPageSize();
        var x = this.lbOuterImageContainer.getWidth();
        this.lbImageDataContainer.setStyle({
            display: "block",
            position: "absolute",
            left: (((c[0]-x)/2)+3) + "px",
            width: x-10 + "px"
        });
    },
    updateNav: function () {
        this.lbHoverNav.show();
        if (this.prevImage >= 0) {
            this.prevLink.show()
        }
        if (this.nextImage >= 0) {
            this.nextLink.show()
        }
        this.enableKeyboardNav()
    },
    enableKeyboardNav: function () {
        document.observe("keydown", this.keyboardAction)
    },
    disableKeyboardNav: function () {
        document.stopObserving("keydown", this.keyboardAction)
    },
    keyboardAction: function (d) {
        var a = d.keyCode;
        var b;
        if (d.DOM_VK_ESCAPE) {
            b = d.DOM_VK_ESCAPE
        } else {
            b = 27
        }
        var c = String.fromCharCode(a).toLowerCase();
        if (c.match(/x|o|c/) || (a == b)) {
            this.end()
        } else {
            if ((c == "s") || (a == 83)) {
                this.togglePlayPause()
            } else {
                if ((c == "p") || (a == 37)) {
                    if (this.activeImage != 0) {
                        this.disableKeyboardNav();
                        this.changeImage(this.activeImage - 1)
                    }
                } else {
                    if ((c == "n") || (a == 39)) {
                        if (this.activeImage != (this.imageArray.length - 1)) {
                            this.disableKeyboardNav();
                            this.changeImage(this.activeImage + 1)
                        }
                    }
                }
            }
        }
    },
    preloadNeighborImages: function () {
        
    },
    togglePlayPause: function () {
        if (this.slideshowActive) {
            this.pause()
        } else {
            this.play()
        }
    },
    play: function () {
        this.slideshowActive = true;
        if (this.activeImage != (this.imageArray.length - 1)) {
            this.changeImage(this.activeImage + 1)
        } else {
            if (LightboxOptions.slideshowAutoclose && !LightboxOptions.loop) {
                this.slideshowTimer = setTimeout(this.end.bind(this), 0)
            } else {
                if (LightboxOptions.loop) {
                    this.changeImage(0)
                } else {}
            }
        }
    },
    pause: function () {
        this.slideshowActive = false;
        clearTimeout(this.slideshowTimer);
        this.playLink.setStyle({
            display: ""
        });
        this.pauseLink.setStyle({
            display: "none"
        })
    },
    end: function () {
        this.pause();
        this.disableKeyboardNav();
        this.lbLightbox.hide();
        new Effect.Fade(this.overlay, {
            duration: this.overlayDuration
        });
        $$("select", "object", "embed").each(function (a) {
            a.style.visibility = "visible"
        })
    },
    getPageSize: function () {
        var c, a;
        if (window.innerHeight && window.scrollMaxY) {
            c = window.innerWidth + window.scrollMaxX;
            a = window.innerHeight + window.scrollMaxY
        } else {
            if (document.body.scrollHeight > document.body.offsetHeight) {
                c = document.body.scrollWidth;
                a = document.body.scrollHeight
            } else {
                c = document.body.offsetWidth;
                a = document.body.offsetHeight
            }
        }
        var b, d;
        if (self.innerHeight) {
            if (document.documentElement.clientWidth) {
                b = document.documentElement.clientWidth
            } else {
                b = self.innerWidth
            }
            d = self.innerHeight
        } else {
            if (document.documentElement && document.documentElement.clientHeight) {
                b = document.documentElement.clientWidth;
                d = document.documentElement.clientHeight
            } else {
                if (document.body) {
                    b = document.body.clientWidth;
                    d = document.body.clientHeight
                }
            }
        }
        if (a < d) {
            pageHeight = d
        } else {
            pageHeight = a
        }
        if (c < b) {
            pageWidth = c
        } else {
            pageWidth = b
        }
        return [pageWidth, pageHeight]
    }
};
document.observe("dom:loaded", function () {
    new Lightbox()
});