/*
ColorBox v1.2.6 - 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($) {

    var open, element, settings, callback, maxWidth, maxHeight, loadedWidth, loadedHeight, interfaceHeight, interfaceWidth, index, $related, ssTimeout, $slideshow, $window, $close, $next, $prev, $current, $title, $modal, $wrap, $loadingOverlay, $loadingGraphic, $overlay, $modalContent, $loaded, $borderTopCenter, $borderMiddleLeft, $borderMiddleRight, $borderBottomCenter;

    /* Helper Functions */
    //function for IE6 to set the background overlay
    function IE6Overlay() {
        $overlay.css({ "position": "absolute", width: $window.width(), height: $window.height(), top: $window.scrollTop(), left: $window.scrollLeft() });

        var posTop = $window.scrollTop() + $window.height() / 2 - $modalContent.height() / 2;
        var posLeft = $window.scrollLeft() + $window.width() / 2 - $modalContent.width() / 2;
        $modal.css({ "position": "absolute", width: $modalContent.width() + 50, height: $modalContent.height() + 50, top: posTop, left: posLeft });
    }

    function slideshow() {
        var stop;
        function start() {
            $slideshow
			.text(settings.slideshowStop)
			.bind("cbox_complete", function() {
			    ssTimeout = setTimeout($.fn.colorbox.next, settings.slideshowSpeed);
			})
			.bind("cbox_load", function() {
			    clearTimeout(ssTimeout);
			}).one("click", function() {
			    stop();
			    $(this).removeClass('hover');
			});
            $modal.removeClass("cboxSlideshow_off").addClass("cboxSlideshow_on");
        }

        stop = function() {
            clearTimeout(ssTimeout);
            $slideshow
			.text(settings.slideshowStart)
			.unbind('cbox_complete cbox_load')
			.one("click", function() {
			    start();
			    ssTimeout = setTimeout($.fn.colorbox.next, settings.slideshowSpeed);
			    $(this).removeClass('hover');
			});
            $modal.removeClass("cboxSlideshow_on").addClass("cboxSlideshow_off");
        };

        if (settings.slideshow && $related.length > 1) {
            if (settings.slideshowAuto) {
                start();
            } else {
                stop();
            }
        }
    }

    function clearInline() {
        if ($("#cboxInlineTemp").length > 0) {
            $loaded.children().insertBefore("#cboxInlineTemp");
            $("#cboxInlineTemp").remove();
        }
    }

    function cbox_key(e) {
        if (e.keyCode == 37) {
            e.preventDefault();
            $prev.click();
        } else if (e.keyCode == 39) {
            e.preventDefault();
            $next.click();
        }
    }

    // Convert % values to pixels
    function setSize(size, dimension) {
        dimension = dimension == 'x' ? document.documentElement.clientWidth : document.documentElement.clientHeight;
        return (typeof size == 'string') ? (size.match(/%/) ? (dimension / 100) * parseInt(size, 10) : parseInt(size, 10)) : size;
    }

    function isImage(url) {
        return settings.photo ? true : url.match(/\.(gif|png|jpg|jpeg|bmp)(?:\?([^#]*))?(?:#(.*))?$/i);
    }

    /* Initializes ColorBox when the DOM has loaded */
    $(function() {
        $.fn.colorbox.init();
    });

    $.fn.colorbox = function(options, custom_callback) {
        if (this.length) {
            this.each(function() {
                var data = $(this).data("colorbox") ? $.extend({},
					$(this).data("colorbox"), options) : $.extend({}, $.fn.colorbox.settings, options);
                $(this).data("colorbox", data).addClass("cboxelement");
            });
        } else {
            $(this).data("colorbox", $.extend({}, $.fn.colorbox.settings, options));
        }

        $(this).unbind("click.colorbox").bind("click.colorbox", function(event) {

            element = this;

            settings = $(element).data('colorbox');

            //remove the focus from the anchor to prevent accidentally calling
            //colorbox multiple times (by pressing the 'Enter' key
            //after colorbox has opened, but before the user has clicked on anything else)
            element.blur();

            callback = custom_callback ? custom_callback : false;

            var rel = settings.rel ? settings.rel : element.rel;

            if (rel && rel != 'nofollow') {
                $related = $('.cboxelement').filter(function() {
                    var relRelated = $(this).data("colorbox").rel ? $(this).data("colorbox").rel : this.rel;
                    return (relRelated == rel);
                });
                index = $related.index(element);

                if (index < 0) { //this checks direct calls to colorbox
                    $related = $related.add(element);
                    index = $related.length - 1;
                }

            } else {
                $related = $(element);
                index = 0;
            }
            if (!open) {
                $.event.trigger('cbox_open');
                $close.html(settings.close);
                $overlay.css({ "opacity": settings.opacity }).show();
                open = true;
                $.fn.colorbox.position(setSize(settings.initialWidth, 'x'), setSize(settings.initialHeight, 'y'), 0);
                if ($.browser.msie && $.browser.version < 7) {
                    $window.bind("resize scroll", IE6Overlay);
                }
            }
            slideshow();
            $.fn.colorbox.load();

            if (settings.overlayClose === true) {
                $overlay.css({ "cursor": "pointer" }).click($.fn.colorbox.close);
            }
            event.preventDefault();
        });

        if (options && options.open) {
            $(this).triggerHandler('click.colorbox');
        }

        return this;
    };

    $.fn.colorbox.element = function() {
        return element;
    };

    /*
    Initialize the modal: 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.
    */
    $.fn.colorbox.init = function() {

        $window = $(window);

        $('body').prepend(
			$overlay = $('<div id="cboxOverlay" />').hide(),
			$modal = $('<div id="colorbox" />')
		);

        $wrap = $('<div id="cboxWrapper" />').appendTo($modal).append(
			$('<div/>').append(
				$('<div id="cboxTopLeft"/>'),
				$borderTopCenter = $('<div id="cboxTopCenter"/>'),
				$('<div id="cboxTopRight"/>')
			),
			$borderMiddleLeft = $('<div id="cboxMiddleLeft" />'),
			$modalContent = $('<div id="cboxContent" />'),
			$borderMiddleRight = $('<div id="cboxMiddleRight" />'),
			$('<div/>').append(
				$('<div id="cboxBottomLeft"/>'),
				$borderBottomCenter = $('<div id="cboxBottomCenter"/>'),
				$('<div id="cboxBottomRight"/>')
			)
		);

        $wrap.find("[id]").css({ 'float': 'left' });

        $modalContent.append(
        //loaded is filled with temporary HTML to allow the CSS backgrounds for those elements to load before ColorBox is actually called.
			$loaded = $('<div id="cboxLoadedContent" style="width:0; height:0;" />'),
			$loadingOverlay = $('<div id="cboxLoadingOverlay" />'),
			$loadingGraphic = $('<div id="cboxLoadingGraphic" />'),
			$title = $('<div id="cboxTitle" />'),
			$current = $('<div id="cboxCurrent" />'),
			$slideshow = $('<div id="cboxSlideshow" />'),
			$next = $('<div id="cboxNext" />').click($.fn.colorbox.next),
			$prev = $('<div id="cboxPrevious" />').click($.fn.colorbox.prev),
			$close = $('<div id="cboxClose" />').click($.fn.colorbox.close)
		);

        $modalContent.children()
			.addClass("hover")
			.mouseover(function() { $(this).addClass("hover"); })
			.mouseout(function() { $(this).removeClass("hover"); })
			.hide();

        //precalculate sizes that will be needed multiple times.
        interfaceHeight = $borderTopCenter.height() + $borderBottomCenter.height() + $modalContent.outerHeight(true) - $modalContent.height(); //Subtraction needed for IE6
        interfaceWidth = $borderMiddleLeft.width() + $borderMiddleRight.width() + $modalContent.outerWidth(true) - $modalContent.width();
        loadedHeight = $loaded.outerHeight(true);
        loadedWidth = $loaded.outerWidth(true);

        $modal.css({ "padding-bottom": interfaceHeight, "padding-right": interfaceWidth }).hide(); //the padding removes the need to do size conversions during the animation step.

        //Setup button & key events.
        $().bind("keydown.cbox_close", function(e) {
            if (e.keyCode == 27) {
                e.preventDefault();
                $close.click();
            }
        });

        $modalContent.children().removeClass("hover");
    };

    //navigates to the next page/image in a set.
    $.fn.colorbox.next = function() {
        index = index < $related.length - 1 ? index + 1 : 0;
        $.fn.colorbox.load();
    };

    $.fn.colorbox.prev = function() {
        index = index > 0 ? index - 1 : $related.length - 1;
        $.fn.colorbox.load();
    };

    $.fn.colorbox.position = function(mWidth, mHeight, speed, loadedCallback) {
        var winHeight = $window.height();

        var posTop = winHeight / 2 - mHeight / 2;
        var posLeft = document.documentElement.clientWidth / 2 - mWidth / 2;
        //keeps the box from expanding to an inaccessible area offscreen.
        if (mHeight > winHeight) { posTop -= (mHeight - winHeight); }
        if (posTop < 0) { posTop = 0; }
        if (posLeft < 0) { posLeft = 0; }

        posTop += $window.scrollTop();
        posLeft += $window.scrollLeft();

        mWidth = mWidth - interfaceWidth;
        mHeight = mHeight - interfaceHeight;

        //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 size has to be sure that IE6 uses the correct height.
            $borderTopCenter[0].style.width = $borderBottomCenter[0].style.width = $modalContent[0].style.width = that.style.width;
            $loadingGraphic[0].style.height = $loadingOverlay[0].style.height = $modalContent[0].style.height = $borderMiddleLeft[0].style.height = $borderMiddleRight[0].style.height = that.style.height;
        }

        //setting the speed to 0 to reduce the delay between same-sized content.
        var animate_speed = ($modal.width() === mWidth && $modal.height() === mHeight) ? 0 : speed;
        $modal.dequeue().animate({ height: mHeight, width: mWidth, top: posTop, left: posLeft }, { duration: animate_speed,
            complete: function() {
                modalDimensions(this);

                //shrink the wrapper down to exactly the size of colorbox to avoid a bug in IE's iframe implementation.
                $wrap[0].style.width = (mWidth + interfaceWidth) + "px";
                $wrap[0].style.height = (mHeight + interfaceHeight) + "px";

                if (loadedCallback) { loadedCallback(); }
                if ($.browser.msie) { IE6Overlay(); }
            },
            step: function() {
                modalDimensions(this);
            }
        });
    };

    $.fn.colorbox.dimensions = function(object) {
        if (!open) { return; }

        $window.unbind('resize.cbox_resize');

        var speed = settings.transition == "none" ? 0 : settings.speed;
        $loaded.remove();
        $loaded = $(object);

        var width;
        var height;

        function getWidth() {
            if (settings.width) {
                width = maxWidth;
            } else {
                width = maxWidth && maxWidth < $loaded.width() ? maxWidth : $loaded.width();
            }
            return width;
        }
        function getHeight() {
            if (settings.height) {
                height = maxHeight;
            } else {
                height = maxHeight && maxHeight < $loaded.height() ? maxHeight : $loaded.height();
            }
            return height;
        }

        $loaded.hide().appendTo('body')
		.attr({ id: 'cboxLoadedContent' })
		.css({ width: getWidth() })
		.css({ height: getHeight() })//sets the height independently from the width in case the new width influences the value of height.
		.prependTo($modalContent);

        if ($.browser.msie && $.browser.version < 7) {
            $('select').not($('#colorbox select')).css({ 'visibility': 'hidden' });
        }

        if ($('#cboxPhoto').length > 0 && settings.height) {
            var topMargin = (height - parseInt($('#cboxPhoto')[0].style.height, 10)) / 2;
            $('#cboxPhoto').css({ marginTop: (topMargin > 0 ? topMargin : 0) });
        }

        function setPosition(s) {
            var mWidth = width + loadedWidth + interfaceWidth;
            var mHeight = height + loadedHeight + interfaceHeight;
            $.fn.colorbox.position(mWidth, mHeight, s, function() {
                if (!open) { return; }

                if ($.browser.msie) {
                    //This fadeIn helps the bicubic resampling to kick-in.
                    if ($('#cboxPhoto').length > 0) { $loaded.fadeIn(100); }
                    //IE adds a filter when ColorBox fades in and out that can cause problems if the loaded content contains transparent pngs.
                    $modal.css('filter', '');
                }

                $modalContent.children().show();

                //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.
                $('#cboxIframe').after("<iframe name='iframe_" + new Date().getTime() + "' frameborder=0 src='" + (settings.href ? settings.href : element.href) + "' />").remove();

                $loadingOverlay.hide();
                $loadingGraphic.hide();
                $slideshow.hide();

                if ($related.length > 1) {
                    $current.html(settings.current.replace(/\{current\}/, index + 1).replace(/\{total\}/, $related.length));
                    $next.html(settings.next);
                    $prev.html(settings.previous);

                    $().unbind('keydown', cbox_key).one('keydown', cbox_key);

                    if (settings.slideshow) {
                        $slideshow.show();
                    }
                } else {
                    $current.add($next).add($prev).hide();
                }

                $title.html(settings.title ? settings.title : element.title);

                $.event.trigger('cbox_complete');

                if (callback) {
                    callback.call(element);
                }

                if (settings.transition === 'fade') {
                    $modal.fadeTo(speed, 1, function() {
                        if ($.browser.msie) { $modal.css('filter', ''); }
                    });
                }

                $window.bind('resize.cbox_resize', function() {
                    $.fn.colorbox.position(mWidth, mHeight, 0);
                });
            });
        }
        if (settings.transition == 'fade') {
            $modal.fadeTo(speed, 0, function() { setPosition(0); });
        } else {
            setPosition(speed);
        }

        if (settings.preloading && $related.length > 1) {
            var prev = index > 0 ? $related[index - 1] : $related[$related.length - 1];
            var next = index < $related.length - 1 ? $related[index + 1] : $related[0];

            var nextSrc = $(next).data('colorbox').href ? $(next).data('colorbox').href : next.href;
            var prevSrc = $(prev).data('colorbox').href ? $(prev).data('colorbox').href : prev.href;

            if (isImage(nextSrc)) {
                $('<img />').attr('src', nextSrc);
            }
            if (isImage(prevSrc)) {
                $('<img />').attr('src', prevSrc);
            }
        }
    };

    $.fn.colorbox.load = function() {

        element = $related[index];

        settings = $(element).data('colorbox');

        $.event.trigger('cbox_load');

        $loadingOverlay.show();
        $loadingGraphic.show();
        $close.show();
        clearInline(); //puts inline elements back if they are being used

        // Evaluate the height based on the optional height and width settings.
        var height = settings.height ? setSize(settings.height, 'y') - loadedHeight - interfaceHeight : false;
        var width = settings.width ? setSize(settings.width, 'x') - loadedWidth - interfaceWidth : false;

        //Re-evaluate the maximum dimensions based on the optional maxheight and maxwidth.
        if (settings.maxHeight) {
            maxHeight = settings.maxHeight ? setSize(settings.maxHeight, 'y') - loadedHeight - interfaceHeight : false;
            height = height && height < maxHeight ? height : maxHeight;
        }
        if (settings.maxWidth) {
            maxWidth = settings.maxWidth ? setSize(settings.maxWidth, 'x') - loadedWidth - interfaceWidth : false;
            width = width && width < maxWidth ? width : maxWidth;
        }

        maxHeight = height;
        maxWidth = width;

        var href = settings.href ? settings.href : element.href;

        if (settings.inline) {
            $('<div id="cboxInlineTemp" />').hide().insertBefore($(href)[0]);
            $.fn.colorbox.dimensions($(href).wrapAll('<div/>').parent());
        } else if (settings.iframe) {
            $.fn.colorbox.dimensions(
				$("<div><div id='cboxIframe' /></div>")
			); //timestamp to prevent caching.
        } else if (isImage(href)) {
            var loadingElement = new Image();
            loadingElement.onload = function() {
                loadingElement.onload = null;

                if ((maxHeight || maxWidth) && settings.resize) {
                    var width = this.width;
                    var height = this.height;
                    var percent = 0;
                    var that = this;

                    var setResize = function() {
                        height += height * percent;
                        width += width * percent;
                        that.height = height;
                        that.width = width;
                    };
                    if (maxWidth && width > maxWidth) {
                        percent = (maxWidth - width) / width;
                        setResize();
                    }
                    if (maxHeight && height > maxHeight) {
                        percent = (maxHeight - height) / height;
                        setResize();
                    }
                }
                $.fn.colorbox.dimensions($("<div />").css({ width: this.width, height: this.height }).append($(this).css({ width: this.width, height: this.height, display: "block", margin: "auto", border: 0 }).attr('id', 'cboxPhoto')));
                if ($related.length > 1) {
                    $(this).css({ cursor: 'pointer' }).click($.fn.colorbox.next);
                }
                if ($.browser.msie && $.browser.version == 7) {
                    this.style.msInterpolationMode = 'bicubic';
                }
            };
            loadingElement.src = href;
        } else {
            $('<div />').load(href, function(data, textStatus) {
                if (textStatus == "success") {
                    $.fn.colorbox.dimensions($(this));
                } else {
                    $.fn.colorbox.dimensions($("<p>Request unsuccessful.</p>"));
                }
            });
        }
    };

    //public function for closing colorbox.  To use this within an iframe use the following format: parent.$.fn.colorbox.close();
    $.fn.colorbox.close = function() {
        open = false;
        clearTimeout(ssTimeout);
        $window.unbind('resize.cbox_resize');
        $slideshow.unbind('cbox_complete cbox_load click');
        clearInline();
        $overlay.css({ cursor: 'auto' }).fadeOut('fast').unbind('click', $.fn.colorbox.close);
        $().unbind('keydown', cbox_key);

        if ($.browser.msie && $.browser.version < 7) {
            $('select').css({ 'visibility': 'inherit' });
            $window.unbind('resize scroll', IE6Overlay);
        }

        $modalContent.children().hide();

        $modal
		.stop(true, false)
		.removeClass()
		.fadeOut('fast', function() {
		    element.focus();
		    $loaded.remove();
		    $modal.css({ 'opacity': 1 });
		    $.event.trigger('cbox_closed');
		});
    };

    /*
    ColorBox Default Settings.
		
		The colorbox() function takes one argument, an object of key/value pairs, that are used to initialize the modal.
		
		Please do not change these settings here, instead overwrite these settings when attaching the colorbox() event to your anchors.
    Example (Global)	: $.fn.colorbox.settings.transition = "fade"; //changes the transition to fade for all colorBox() events proceeding it's declaration.
    Example (Specific)	: $("a[href='http://www.google.com']").colorbox({width:"90%", height:"450px", iframe:true});
		
		See http://colorpowered.com/colorbox for details.
    */
    $.fn.colorbox.settings = {
        transition: "elastic",
        speed: 350,
        width: false,
        height: false,
        initialWidth: "400",
        initialHeight: "400",
        maxWidth: false,
        maxHeight: false,
        resize: true,
        inline: 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,
        overlayClose: true,
        slideshow: false,
        slideshowAuto: true,
        slideshowSpeed: 2500,
        slideshowStart: "start slideshow",
        slideshowStop: "stop slideshow"
    };
})(jQuery);