// ColorBox v1.3.9 - a full featured, light-weight, customizable lightbox based on jQuery 1.3
// c) 2009 Jack Moore - www.colorpowered.com - jack@colorpowered.com
// Licensed under the MIT license: http://www.opensource.org/licenses/mit-license.php
(function ($, window) {
    
    var
    // ColorBox Default Settings.    
    // See http://colorpowered.com/colorbox for details.
    defaults = {
        transition: "elastic",
        speed: 300,
        width: false,
        initialWidth: "600",
        innerWidth: false,
        maxWidth: false,
        height: false,
        initialHeight: "450",
        innerHeight: false,
        maxHeight: false,
        scalePhotos: true,
        scrolling: true,
        inline: false,
        html: false,
        iframe: false,
        photo: false,
        href: false,
        title: false,
        rel: false,
        opacity: 0.9,
        preloading: true,
        current: "image {current} of {total}",
        previous: "previous",
        next: "next",
        close: "close",
        open: false,
        loop: true,
        slideshow: false,
        slideshowAuto: true,
        slideshowSpeed: 2500,
        slideshowStart: "start slideshow",
        slideshowStop: "stop slideshow",
        onOpen: false,
        onLoad: false,
        onComplete: false,
        onCleanup: false,
        onClosed: false,
        overlayClose: true,        
        escKey: true,
        arrowKey: true
    },
    
    // Abstracting the HTML and event identifiers for easy rebranding
    colorbox = 'colorbox',
    prefix = 'cbox',
    
    // Events    
    event_open = prefix + '_open',
    event_load = prefix + '_load',
    event_complete = prefix + '_complete',
    event_cleanup = prefix + '_cleanup',
    event_closed = prefix + '_closed',
    
    // Special Handling for IE
    isIE = $.browser.msie && !$.support.opacity, // feature detection alone gave a false positive on at least one phone browser and on some development versions of Chrome.
    isIE6 = isIE && $.browser.version < 7,
    event_ie6 = prefix + '_IE6',
    // Cached jQuery Object Variables
    $overlay,
    $box,
    $wrap,
    $content,
    $topBorder,
    $leftBorder,
    $rightBorder,
    $bottomBorder,
    $related,
    $window,
    $loaded,
    $loadingBay,
    $loadingOverlay,
    $title,
    $current,
    $slideshow,
    $next,
    $prev,
    $close,
    // Variables for cached values or use across multiple functions
    interfaceHeight,
    interfaceWidth,
    loadedHeight,
    loadedWidth,
    element,
    bookmark,
    index,
    settings,
    open,
    active,
    
    publicMethod,
    boxElement = prefix + 'Element';
    
    // ****************
    // HELPER FUNCTIONS
    // ****************
    // jQuery object generator to reduce code size
    function $div(id, css) { 
        id = id ? ' id="' + prefix + id + '"' : '';
        css = css ? ' style="' + css + '"' : '';
        return $('<div' + id + css + '/>');
    }
    // Convert % values to pixels
    function setSize(size, dimension) {
        dimension = dimension === 'x' ? $window.width() : $window.height();
        return (typeof size === 'string') ? Math.round((size.match(/%/) ? (dimension / 100) * parseInt(size, 10) : parseInt(size, 10))) : size;
    }
    // Checks an href to see if it is a photo.
    // There is a force photo option (photo: true) for hrefs that cannot be matched by this regex.
    function isImage(url) {
        url = $.isFunction(url) ? url.call(element) : url;
        return settings.photo || url.match(/\.(gif|png|jpg|jpeg|bmp)(?:\?([^#]*))?(?:#(\.*))?$/i);
    }
    
    // Assigns functions results to their respective settings.  This allows functions to be used to set ColorBox options.
    function process() {
        for (var i in settings) {
            if ($.isFunction(settings[i]) && i.substring(0, 2) !== 'on') { // checks to make sure the function isn't one of the callbacks, they will be handled at the appropriate time.
                settings[i] = settings[i].call(element);
            }
        }
        settings.rel = settings.rel || element.rel || 'nofollow';
        settings.href = settings.href || $(element).attr('href');
        settings.title = settings.title || element.title;
    }
    function launch(elem) {
        
        element = elem;
        
        settings = $.extend({}, $(element).data(colorbox));
        
        process(); // Convert functions to their returned values.
        
        if (settings.rel !== 'nofollow') {
            $related = $('.' + boxElement).filter(function () {
                var relRelated = $(this).data(colorbox).rel || this.rel;
                return (relRelated === settings.rel);
            });
            index = $related.index(element);
            
            // Check direct calls to ColorBox.
            if (index === -1) {
                $related = $related.add(element);
                index = $related.length - 1;
            }
        } else {
            $related = $(element);
            index = 0;
        }
        
        if (!open) {
            open = active = true; // Prevents the page-change action from queuing up if the visitor holds down the left or right keys.
            
            bookmark = element;
            
            try {
                bookmark.blur(); // Remove the focus from the calling element.
            }catch (e) {}
            
            $.event.trigger(event_open);
            if (settings.onOpen) {
                settings.onOpen.call(element);
            }
            
            // +settings.opacity avoids a problem in IE when using non-zero-prefixed-string-values, like '.5'
            $overlay.css({"opacity": +settings.opacity, "cursor": settings.overlayClose ? "pointer" : "auto"}).show();
            
            // Opens inital empty ColorBox prior to content being loaded.
            settings.w = setSize(settings.initialWidth, 'x');
            settings.h = setSize(settings.initialHeight, 'y');
            publicMethod.position(0);
            
            if (isIE6) {
                $window.bind('resize.' + event_ie6 + ' scroll.' + event_ie6, function () {
                    $overlay.css({width: $window.width(), height: $window.height(), top: $window.scrollTop(), left: $window.scrollLeft()});
                }).trigger('scroll.' + event_ie6);
            }
        }
        
        $current.add($prev).add($next).add($slideshow).add($title).hide();
        
        $close.html(settings.close).show();
        
        publicMethod.slideshow();
        
        publicMethod.load();
    }
    // ****************
    // PUBLIC FUNCTIONS
    // Usage format: $.fn.colorbox.close();
    // Usage from within an iframe: parent.$.fn.colorbox.close();
    // ****************
    
    publicMethod = $.fn[colorbox] = $[colorbox] = function (options, callback) {
        var $this = this;
        
        if (!$this[0] && $this.selector) { // if a selector was given and it didn't match any elements, go ahead and exit.
            return $this;
        }
        
        options = options || {};
        
        if (callback) {
            options.onComplete = callback;
        }
        
        if (!$this[0] || $this.selector === undefined) { // detects $.colorbox() and $.fn.colorbox()
            $this = $('<a/>');
            options.open = true; // assume an immediate open
        }
        
        $this.each(function () {
            $(this).data(colorbox, $.extend({}, $(this).data(colorbox) || defaults, options)).addClass(boxElement);
        });
        
        if (options.open) {
            launch($this[0]);
        }
        
        return $this;
    };
    // Initialize ColorBox: store common calculations, preload the interface graphics, append the html.
    // This preps colorbox for a speedy open when clicked, and lightens the burdon on the browser by only
    // having to run once, instead of each time colorbox is opened.
    publicMethod.init = function () {
        // Create & Append jQuery Objects
        $window = $(window);
        $box = $div().attr({id: colorbox, 'class': isIE ? prefix + 'IE' : ''});
        $overlay = $div("Overlay", isIE6 ? 'position:absolute' : '').hide();
        
        $wrap = $div("Wrapper");
        $content = $div("Content").append(
            $loaded = $div("LoadedContent", 'width:0; height:0'),
            $loadingOverlay = $div("LoadingOverlay").add($div("LoadingGraphic")),
            $title = $div("Title"),
            $current = $div("Current"),
            $next = $div("Next"),
            $prev = $div("Previous"),
            $slideshow = $div("Slideshow"),
            $close = $div("Close")
        );
        $wrap.append( // The 3x3 Grid that makes up ColorBox
            $div().append(
                $div("TopLeft"),
                $topBorder = $div("TopCenter"),
                $div("TopRight")
            ),
            $div().append(
                $leftBorder = $div("MiddleLeft"),
                $content,
                $rightBorder = $div("MiddleRight")
            ),
            $div().append(
                $div("BottomLeft"),
                $bottomBorder = $div("BottomCenter"),
                $div("BottomRight")
            )
        ).children().children().css({'float': 'left'});
        
        $loadingBay = $div(false, 'position:absolute; width:9999px; visibility:hidden; display:none');
        
        $('body').prepend($overlay, $box.append($wrap, $loadingBay));
        
        $content.children()
        .hover(function () {
            $(this).addClass('hover');
        }, function () {
            $(this).removeClass('hover');
        }).addClass('hover');
        
        // Cache values needed for size calculations
        interfaceHeight = $topBorder.height() + $bottomBorder.height() + $content.outerHeight(true) - $content.height();//Subtraction needed for IE6
        interfaceWidth = $leftBorder.width() + $rightBorder.width() + $content.outerWidth(true) - $content.width();
        loadedHeight = $loaded.outerHeight(true);
        loadedWidth = $loaded.outerWidth(true);
        
        // Setting padding to remove the need to do size conversions during the animation step.
        $box.css({"padding-bottom": interfaceHeight, "padding-right": interfaceWidth}).hide();
        
        // Setup button events.
        $next.click(publicMethod.next);
        $prev.click(publicMethod.prev);
        $close.click(publicMethod.close);
        
        // Adding the 'hover' class allowed the browser to load the hover-state
        // background graphics.  The class can now can be removed.
        $content.children().removeClass('hover');
        
        $('.' + boxElement).live('click', function (e) {
            // checks to see if it was a non-left mouse-click and for clicks modified with ctrl, shift, or alt.
            if ((e.button !== 0 && typeof e.button !== 'undefined') || e.ctrlKey || e.shiftKey || e.altKey) {
                return true;
            } else {
                launch(this);            
                return false;
            }
        });
        
        $overlay.click(function () {
            if (settings.overlayClose) {
                publicMethod.close();
            }
        });
        
        // Set Navigation Key Bindings
        $(document).bind("keydown", function (e) {
            if (open && settings.escKey && e.keyCode === 27) {
                e.preventDefault();
                publicMethod.close();
            }
            if (open && settings.arrowKey && !active && $related[1]) {
                if (e.keyCode === 37 && (index || settings.loop)) {
                    e.preventDefault();
                    $prev.click();
                } else if (e.keyCode === 39 && (index < $related.length - 1 || settings.loop)) {
                    e.preventDefault();
                    $next.click();
                }
            }
        });
    };
    
    publicMethod.remove = function () {
        $box.add($overlay).remove();
        $('.' + boxElement).die('click').removeData(colorbox).removeClass(boxElement);
    };
    publicMethod.position = function (speed, loadedCallback) {
        var
        animate_speed,
        // keeps the top and left positions within the browser's viewport.
        posTop = Math.max($window.height() - settings.h - loadedHeight - interfaceHeight, 0) / 2 + $window.scrollTop(),
        posLeft = Math.max($window.width() - settings.w - loadedWidth - interfaceWidth, 0) / 2 + $window.scrollLeft();
        
        // setting the speed to 0 to reduce the delay between same-sized content.
        animate_speed = ($box.width() === settings.w + loadedWidth && $box.height() === settings.h + loadedHeight) ? 0 : speed;
        
        // this gives the wrapper plenty of breathing room so it's floated contents can move around smoothly,
        // but it has to be shrank down around the size of div#colorbox when it's done.  If not,
        // it can invoke an obscure IE bug when using iframes.
        $wrap[0].style.width = $wrap[0].style.height = "9999px";
        
        function modalDimensions(that) {
            // loading overlay height has to be explicitly set for IE6.
            $topBorder[0].style.width = $bottomBorder[0].style.width = $content[0].style.width = that.style.width;
            $loadingOverlay[0].style.height = $loadingOverlay[1].style.height = $content[0].style.height = $leftBorder[0].style.height = $rightBorder[0].style.height = that.style.height;
        }
        
        $box.dequeue().animate({width: settings.w + loadedWidth, height: settings.h + loadedHeight, top: posTop, left: posLeft}, {
            duration: animate_speed,
            complete: function () {
                modalDimensions(this);
                
                active = false;
                
                // shrink the wrapper down to exactly the size of colorbox to avoid a bug in IE's iframe implementation.
                $wrap[0].style.width = (settings.w + loadedWidth + interfaceWidth) + "px";
                $wrap[0].style.height = (settings.h + loadedHeight + interfaceHeight) + "px";
                
                if (loadedCallback) {
                    loadedCallback();
                }
            },
            step: function () {
                modalDimensions(this);
            }
        });
    };
    publicMethod.resize = function (options) {
        if (open) {
            options = options || {};
            
            if (options.width) {
                settings.w = setSize(options.width, 'x') - loadedWidth - interfaceWidth;
            }
            if (options.innerWidth) {
                settings.w = setSize(options.innerWidth, 'x');
            }
            $loaded.css({width: settings.w});
            
            if (options.height) {
                settings.h = setSize(options.height, 'y') - loadedHeight - interfaceHeight;
            }
            if (options.innerHeight) {
                settings.h = setSize(options.innerHeight, 'y');
            }
            if (!options.innerHeight && !options.height) {                
                var $child = $loaded.wrapInner("<div style='overflow:auto'></div>").children(); // temporary wrapper to get an accurate estimate of just how high the total content should be.
                settings.h = $child.height();
                $child.replaceWith($child.children()); // ditch the temporary wrapper div used in height calculation
            }
            $loaded.css({height: settings.h});
            
            publicMethod.position(settings.transition === "none" ? 0 : settings.speed);
        }
    };
    publicMethod.prep = function (object) {
        if (!open) {
            return;
        }
        
        var photo,
        speed = settings.transition === "none" ? 0 : settings.speed;
        
        $window.unbind('resize.' + prefix);
        $loaded.remove();
        $loaded = $div('LoadedContent').html(object);
        
        function getWidth() {
            settings.w = settings.w || $loaded.width();
            settings.w = settings.mw && settings.mw < settings.w ? settings.mw : settings.w;
            return settings.w;
        }
        function getHeight() {
            settings.h = settings.h || $loaded.height();
            settings.h = settings.mh && settings.mh < settings.h ? settings.mh : settings.h;
            return settings.h;
        }
        
        $loaded.hide()
        .appendTo($loadingBay.show())// content has to be appended to the DOM for accurate size calculations.
        .css({width: getWidth(), overflow: settings.scrolling ? 'auto' : 'hidden'})
        .css({height: getHeight()})// sets the height independently from the width in case the new width influences the value of height.
        .prependTo($content);
        
        $loadingBay.hide();
        
        $('#' + prefix + 'Photo').css({cssFloat: 'none'});// floating the IMG removes the bottom line-height and fixed a problem where IE miscalculates the width of the parent element as 100% of the document width.
        
        // Hides SELECT elements in IE6 because they would otherwise sit on top of the overlay.
        if (isIE6) {
            $('select').not($box.find('select')).filter(function () {
                return this.style.visibility !== 'hidden';
            }).css({'visibility': 'hidden'}).one(event_cleanup, function () {
                this.style.visibility = 'inherit';
            });
        }
                
        function setPosition(s) {
            var prev, prevSrc, next, nextSrc, total = $related.length, loop = settings.loop;
            publicMethod.position(s, function () {
                function defilter() {
                    if (isIE) {
                        //IE adds a filter when ColorBox fades in and out that can cause problems if the loaded content contains transparent pngs.
                        $box[0].style.removeAttribute("filter");
                    }
                }
                
                if (!open) {
                    return;
                }
                
                if (isIE) {
                    //This fadeIn helps the bicubic resampling to kick-in.
                    if (photo) {
                        $loaded.fadeIn(100);
                    }
                }
                
                //Waited until the iframe is added to the DOM & it is visible before setting the src.
                //This increases compatability with pages using DOM dependent JavaScript.
                if (settings.iframe) {
                    $("<iframe frameborder=0" + (settings.scrolling ? "" : " scrolling='no'") + (isIE ? " allowtransparency='true'" : '') + "/>")
                    .attr({src: settings.href, name: new Date().getTime()})
                    .appendTo($loaded);
                }
                
                $loaded.show();
                
                $title.show().html(settings.title);
                
                if (total > 1) { // handle grouping
                    $current.html(settings.current.replace(/\{current\}/, index + 1).replace(/\{total\}/, total)).show();
                    
                    $next[(loop || index < total - 1) ? "show" : "hide"]().html(settings.next);
                    $prev[(loop || index) ? "show" : "hide"]().html(settings.previous);
                    
                    prev = index ? $related[index - 1] : $related[total - 1];
                    next = index < total - 1 ? $related[index + 1] : $related[0];
                    
                    if (settings.slideshow) {
                        $slideshow.show();
                        if (index === total - 1 && !loop && $box.is('.' + prefix + 'Slideshow_on')) {
                            $slideshow.click();
                        }
                    }
                    
                    // Preloads images within a rel group
                    if (settings.preloading) {
                        nextSrc = $(next).data(colorbox).href || next.href;
                        prevSrc = $(prev).data(colorbox).href || prev.href;
                        
                        if (isImage(nextSrc)) {
                            $('<img/>')[0].src = nextSrc;
                        }
                        
                        if (isImage(prevSrc)) {
                            $('<img/>')[0].src = prevSrc;
                        }
                    }
                }
                
                $title.css("display", "none");
                $loadingOverlay.hide();
                
                if (settings.transition === 'fade') {
                    $box.fadeTo(speed, 1, function () {
                        defilter();
                    });
                } else {
                    defilter();
                }
                
                $window.bind('resize.' + prefix, function () {
                    publicMethod.position(0);
                });
                
                $.event.trigger(event_complete);
                if (settings.onComplete) {
                    settings.onComplete.call(element);
                }
            });
        }
        
        if (settings.transition === 'fade') {
            $box.fadeTo(speed, 0, function () {
                setPosition(0);
            });
        } else {
            setPosition(speed);
        }
    };
    publicMethod.load = function () {
        var href, img, setResize, prep = publicMethod.prep;
        
        active = true;
        
        element = $related[index];
        
        settings = $.extend({}, $(element).data(colorbox));
        
        //convert functions to static values
        process();
        
        $.event.trigger(event_load);
        if (settings.onLoad) {
            settings.onLoad.call(element);
        }
        
        settings.h = settings.height ?
                setSize(settings.height, 'y') - loadedHeight - interfaceHeight :
                settings.innerHeight && setSize(settings.innerHeight, 'y');
        
        settings.w = settings.width ?
                setSize(settings.width, 'x') - loadedWidth - interfaceWidth :
                settings.innerWidth && setSize(settings.innerWidth, 'x');
        
        // Sets the minimum dimensions for use in image scaling
        settings.mw = settings.w;
        settings.mh = settings.h;
        
        // Re-evaluate the minimum width and height based on maxWidth and maxHeight values.
        // If the width or height exceed the maxWidth or maxHeight, use the maximum values instead.
        if (settings.maxWidth) {
            settings.mw = setSize(settings.maxWidth, 'x') - loadedWidth - interfaceWidth;
            settings.mw = settings.w && settings.w < settings.mw ? settings.w : settings.mw;
        }
        if (settings.maxHeight) {
            settings.mh = setSize(settings.maxHeight, 'y') - loadedHeight - interfaceHeight;
            settings.mh = settings.h && settings.h < settings.mh ? settings.h : settings.mh;
        }
        
        href = settings.href;
        
        $loadingOverlay.show();
        
        if (settings.inline) {
            // Inserts an empty placeholder where inline content is being pulled from.
            // An event is bound to put inline content back when ColorBox closes or loads new content.
            $div('InlineTemp').hide().insertBefore($(href)[0]).bind(event_load + ' ' + event_cleanup, function () {
                $(this).replaceWith($loaded.children());
            });
            prep($(href));
        } else if (settings.iframe) {
            // IFrame element won't be added to the DOM until it is ready to be displayed,
            // to avoid problems with DOM-ready JS that might be trying to run in that iframe.
            prep(" ");
        } else if (settings.html) {
            prep(settings.html);
        } else if (isImage(href)) {
            img = new Image();
            img.onload = function () {
                var percent;
                
                img.onload = null;
                img.id = prefix + 'Photo';
                $(img).css({margin: 'auto', border: 'none', display: 'block', cssFloat: 'left'});
                
                if (settings.scalePhotos) {
                    setResize = function () {
                        img.height -= img.height * percent;
                        img.width -= img.width * percent;    
                    };
                    if (settings.mw && img.width > settings.mw) {
                        percent = (img.width - settings.mw) / img.width;
                        setResize();
                    }
                    if (settings.mh && img.height > settings.mh) {
                        percent = (img.height - settings.mh) / img.height;
                        setResize();
                    }
                }
                
                if (settings.h) {
                    img.style.marginTop = Math.max(settings.h - img.height, 0) / 2 + 'px';
                }
                
                setTimeout(function () { // Chrome will sometimes report a 0 by 0 size if there isn't pause in execution
                    prep(img);
                }, 1);
                
                if ($related[1] && (index < $related.length - 1 || settings.loop)) {
                    $(img).css({cursor: 'pointer'}).click(publicMethod.next);
                }
                
                if (isIE) {
                    img.style.msInterpolationMode = 'bicubic';
                }
            };
            img.src = href;
        } else {
            $div().appendTo($loadingBay).load(href, function (data, status, xhr) {
                prep(status === 'error' ? 'Request unsuccessful: ' + xhr.statusText : this);
            });
        }
    };
    // Navigates to the next page/image in a set.
    publicMethod.next = function () {
        if (!active) {
            index = index < $related.length - 1 ? index + 1 : 0;
            publicMethod.load();
        }
    };
    
    publicMethod.prev = function () {
        if (!active) {
            index = index ? index - 1 : $related.length - 1;
            publicMethod.load();
        }
    };
    publicMethod.slideshow = function () {
        var stop, timeOut, className = prefix + 'Slideshow_';
        
        $slideshow.bind(event_closed, function () {
            $slideshow.unbind();
            clearTimeout(timeOut);
            $box.removeClass(className + "off " + className + "on");
        });
        
        function start() {
            $slideshow
            .text(settings.slideshowStop)
            .bind(event_complete, function () {
                timeOut = setTimeout(publicMethod.next, settings.slideshowSpeed);
            })
            .bind(event_load, function () {
                clearTimeout(timeOut);    
            }).one("click", function () {
                stop();
            });
            $box.removeClass(className + "off").addClass(className + "on");
        }
        
        stop = function () {
            clearTimeout(timeOut);
            $slideshow
            .text(settings.slideshowStart)
            .unbind(event_complete + ' ' + event_load)
            .one("click", function () {
                start();
                timeOut = setTimeout(publicMethod.next, settings.slideshowSpeed);
            });
            $box.removeClass(className + "on").addClass(className + "off");
        };
        
        if (settings.slideshow && $related[1]) {
            if (settings.slideshowAuto) {
                start();
            } else {
                stop();
            }
        }
    };
    // Note: to use this within an iframe use the following format: parent.$.fn.colorbox.close();
    publicMethod.close = function () {
        if (open) {
            open = false;
            
            $.event.trigger(event_cleanup);
            
            if (settings.onCleanup) {
                settings.onCleanup.call(element);
            }
            
            $window.unbind('.' + prefix + ' .' + event_ie6);
            
            $overlay.fadeTo('fast', 0);
            
            $box.stop().fadeTo('fast', 0, function () {
                $box.find('iframe').attr('src', 'about:blank'); // change the location of the iframe to avoid a problem in IE with flash objects not clearing.
                
                $loaded.remove();
                
                $box.add($overlay).css({'opacity': 1, cursor: 'auto'}).hide();
                
                try {
                    bookmark.focus();
                } catch (e) {
                    // do nothing
                }
                
                setTimeout(function () {
                    $.event.trigger(event_closed);
                    if (settings.onClosed) {
                        settings.onClosed.call(element);
                    }
                }, 1);
            });
        }
    };
    // A method for fetching the current element ColorBox is referencing.
    // returns a jQuery object.
    publicMethod.element = function () {
        return $(element);
    };
    publicMethod.settings = defaults;
    // Initializes ColorBox when the DOM has loaded
    $(publicMethod.init);
}(jQuery, this));