// ColorBox v1.3.15 - a full featured, light-weight, customizable lightbox based on jQuery 1.3+
// Copyright (c) 2010 Jack Moore - 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: "200",
      innerWidth: false,
      maxWidth: false,
      height: false,
      initialHeight: "150",
      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: "{current} of {total}",
      previous: "previous",
      next: "next",
      close: "close",
      open: false,
      returnFocus: true,
      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',
   event_purge = prefix + '_purge',
   event_loaded = prefix + '_loaded',

   // 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,
   index,
   settings,
   open,
   active,
   closing = false,

   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((/%/.test(size) ? (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) {
      return settings.photo || /\.(gif|png|jpg|jpeg|bmp)(?:\?([^#]*))?(?:#(\.*))?$/i.test(url);
   }

   // Assigns function results to their respective settings.  This allows functions to be used as values.
   function process(settings) {
      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;
      return settings;
   }

   function trigger(event, callback) {
      if (callback) {
         callback.call(element);
      }
      $.event.trigger(event);
   }

   // Slideshow functionality
   function slideshow() {
      var
      timeOut,
      className = prefix + "Slideshow_",
      click = "click." + prefix,
      start,
      stop,
      clear;

      if (settings.slideshow && $related[1]) {
         start = function () {
            $slideshow
               .text(settings.slideshowStop)
               .unbind(click)
               .bind(event_complete, function () {
                  if (index < $related.length - 1 || settings.loop) {
                     timeOut = setTimeout(publicMethod.next, settings.slideshowSpeed);
                  }
               })
               .bind(event_load, function () {
                  clearTimeout(timeOut);
               })
               .one(click + ' ' + event_cleanup, stop);
            $box.removeClass(className + "off").addClass(className + "on");
            timeOut = setTimeout(publicMethod.next, settings.slideshowSpeed);
         };

         stop = function () {
            clearTimeout(timeOut);
            $slideshow
               .text(settings.slideshowStart)
               .unbind([event_complete, event_load, event_cleanup, click].join(' '))
               .one(click, start);
            $box.removeClass(className + "on").addClass(className + "off");
         };

         if (settings.slideshowAuto) {
            start();
         } else {
            stop();
         }
      }
   }

   function launch(elem) {
      if (!closing) {

         element = elem;

         settings = process($.extend({}, $.data(element, colorbox)));

         $related = $(element);

         index = 0;

         if (settings.rel !== 'nofollow') {
            $related = $('.' + boxElement).filter(function () {
               var relRelated = $.data(this, 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;
            }
         }

         if (!open) {
            open = active = true; // Prevents the page-change action from queuing up if the visitor holds down the left or right keys.

            $box.show();

            if (settings.returnFocus) {
               try {
                  element.blur();
                  $(element).one(event_closed, function () {
                     try {
                        this.focus();
                     } catch (e) {
                        // do nothing
                     }
                  });
               } catch (e) {
                  // do nothing
               }
            }

            // +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);
            }

            trigger(event_open, settings.onOpen);

            $current.add($prev).add($next).add($slideshow).add($title).hide();

            $close.html(settings.close).show();
         }

         publicMethod.load(true);
      }
   }

   // ****************
   // 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, autoOpen;

      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 () {
         $.data(this, colorbox, $.extend({}, $.data(this, colorbox) || defaults, options));
         $(this).addClass(boxElement);
      });

      autoOpen = options.open;

      if ($.isFunction(autoOpen)) {
         autoOpen = autoOpen.call($this);
      }

      if (autoOpen) {
         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; overflow:hidden'),
         $loadingOverlay = $div("LoadingOverlay").add($div("LoadingGraphic")),
         $title = $div("Title"),
         $current = $div("Current"),
         $next = $div("Next"),
         $prev = $div("Previous"),
         $slideshow = $div("Slideshow").bind(event_open, slideshow),
         $close = $div("Close")
      );
      $wrap.append( // The 3x3 Grid that makes up ColorBox
         $div().append(
            $div("TopLeft"),
            $topBorder = $div("TopCenter"),
            $div("TopRight")
         ),
         $div(false, 'clear:left').append(
            $leftBorder = $div("MiddleLeft"),
            $content,
            $rightBorder = $div("MiddleRight")
         ),
         $div(false, 'clear:left').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)) {
            e.preventDefault();
            launch(this);
         }
      });

      $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(document.documentElement.clientHeight - 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();

      // 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.
      $('#' + prefix + 'Photo').css({cssFloat: 'none', marginLeft: 'auto', marginRight: 'auto'});

      // 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);
               }
            }

            $loaded.show();

            trigger(event_loaded);

            $title.show().html(settings.title);

            if (total > 1) { // handle grouping
               if (typeof settings.current === "string") {
                  $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();
               }

               // Preloads images within a rel group
               if (settings.preloading) {
                  nextSrc = $.data(next, colorbox).href || next.href;
                  prevSrc = $.data(prev, colorbox).href || prev.href;

                  nextSrc = $.isFunction(nextSrc) ? nextSrc.call(next) : nextSrc;
                  prevSrc = $.isFunction(prevSrc) ? prevSrc.call(prev) : prevSrc;

                  if (isImage(nextSrc)) {
                     $('<img/>')[0].src = nextSrc;
                  }

                  if (isImage(prevSrc)) {
                     $('<img/>')[0].src = prevSrc;
                  }
               }
            }

            $loadingOverlay.hide();

            if (settings.transition === 'fade') {
               $box.fadeTo(speed, 1, function () {
                  defilter();
               });
            } else {
               defilter();
            }

            $window.bind('resize.' + prefix, function () {
               publicMethod.position(0);
            });

            trigger(event_complete, settings.onComplete);
         });
      }

      if (settings.transition === 'fade') {
         $box.fadeTo(speed, 0, function () {
            setPosition(0);
         });
      } else {
         setPosition(speed);
      }
   };

   publicMethod.load = function (launched) {
      var href, img, setResize, prep = publicMethod.prep;

      active = true;
      element = $related[index];

      if (!launched) {
         settings = process($.extend({}, $.data(element, colorbox)));
      }

      trigger(event_purge);

      trigger(event_load, settings.onLoad);

      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.
         $div().hide().insertBefore($(href)[0]).one(event_purge, 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.
         $box.one(event_loaded, function () {
            var iframe = $("<iframe frameborder='0' style='width:100%; height:100%; border:0; display:block'/>")[0];
            iframe.name = prefix + (+new Date());
            iframe.src = settings.href;

            if (!settings.scrolling) {
               iframe.scrolling = "no";
            }

            if (isIE) {
               iframe.allowtransparency = "true";
            }

            $(iframe).appendTo($loaded).one(event_purge, function () {
               iframe.src = "//about:blank";
            });
         });

         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({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';
            }

            if ($related[1] && (index < $related.length - 1 || settings.loop)) {
               $(img).css({cursor: 'pointer'}).click(publicMethod.next);
            }

            if (isIE) {
               img.style.msInterpolationMode = 'bicubic';
            }

            setTimeout(function () { // Chrome will sometimes report a 0 by 0 size if there isn't pause in execution
               prep(img);
            }, 1);
         };

         setTimeout(function () { // Opera 10.6+ will sometimes load the src before the onload function is set
            img.src = href;
         }, 1);
      } else if (href) {
         $loadingBay.load(href, function (data, status, xhr) {
            prep(status === 'error' ? 'Request unsuccessful: ' + xhr.statusText : $(this).children());
         });
      }
   };

   // 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();
      }
   };

   // Note: to use this within an iframe use the following format: parent.$.fn.colorbox.close();
   publicMethod.close = function () {
      if (open && !closing) {
         closing = true;

         open = false;

         trigger(event_cleanup, settings.onCleanup);

         $window.unbind('.' + prefix + ' .' + event_ie6);

         $overlay.fadeTo('fast', 0);

         $box.stop().fadeTo('fast', 0, function () {

            trigger(event_purge);

            $loaded.remove();

            $box.add($overlay).css({'opacity': 1, cursor: 'auto'}).hide();

            setTimeout(function () {
               closing = false;
               trigger(event_closed, settings.onClosed);
            }, 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));
