//  ###########################################################################################################################
//
// BEN: Added this whole block to be able to initialise the lightbox BEFORE loading of ALL page-content is finished
//
// written by Dean Edwards, 2005
// with input from Tino Zijdel, Matthias Miller, Diego Perini
// http://dean.edwards.name/weblog/2005/10/add-event/
// 2007-07-10 TKO - Removed check for body in schedule because of problems with Firefox 2.0

function addEvent(element, type, handler) {
  // Modification by Tanny O'Haley, http://tanny.ica.com to add the
  // DOMContentLoaded for all browsers.
  if (type == "DOMContentLoaded" || type == "domload") {
    addDOMLoadEvent(handler);
    return;
  }
  
  if (element.addEventListener) {
    element.addEventListener(type, handler, false);
  } else {
    // assign each event handler a unique ID
    if (!handler.$$guid) {
      handler.$$guid = addEvent.guid++;
    }
    // create a hash table of event types for the element
    if (!element.events) {
      element.events = {};
    }
    // create a hash table of event handlers for each element/event pair
    var handlers = element.events[type];
    if (!handlers) {
      handlers = element.events[type] = {};
      // store the existing event handler (if there is one)
      if (element["on" + type]) {
        handlers[0] = element["on" + type];
      }
    }
    // store the event handler in the hash table
    handlers[handler.$$guid] = handler;
    // assign a global event handler to do all the work
    element["on" + type] = handleEvent;
  }
};
// a counter used to create unique IDs
addEvent.guid = 1;

function removeEvent(element, type, handler) {
  if (element.removeEventListener) {
    element.removeEventListener(type, handler, false);
  } else {
    // delete the event handler from the hash table
    if (element.events && element.events[type]) {
      delete element.events[type][handler.$$guid];
    }
  }
};

function handleEvent(event) {
  var returnValue = true;
  // grab the event object (IE uses a global event object)
  event = event || fixEvent(((this.ownerDocument || this.document || this).parentWindow || window).event);
  // get a reference to the hash table of event handlers
  var handlers = this.events[event.type];
  // execute each event handler
  for (var i in handlers) {
    this.$$handleEvent = handlers[i];
    if (this.$$handleEvent(event) === false) {
      returnValue = false;
    }
  }
  return returnValue;
};

function fixEvent(event) {
  // add W3C standard event methods
  event.preventDefault = fixEvent.preventDefault;
  event.stopPropagation = fixEvent.stopPropagation;
  return event;
};
fixEvent.preventDefault = function() {
  this.returnValue = false;
};
fixEvent.stopPropagation = function() {
  this.cancelBubble = true;
};

// End Dean Edwards addEvent.

// Tino Zijdel - crisp@xs4all.nl This little snippet fixes the problem that the onload attribute on 
// the body-element will overwrite previous attached events on the window object for the onload event.
if (!window.addEventListener) {
  document.onreadystatechange = function(){
    if (window.onload && window.onload != handleEvent) {
      addEvent(window, 'load', window.onload);
      window.onload = handleEvent;
    }
  }
}

// Here are my functions for adding the DOMContentLoaded event to browsers other
// than Mozilla.

// Array of DOMContentLoaded event handlers.
window.onDOMLoadEvents = new Array();
window.DOMContentLoadedInitDone = false;

// Function that adds DOMContentLoaded listeners to the array.
function addDOMLoadEvent(listener) {
  window.onDOMLoadEvents[window.onDOMLoadEvents.length]=listener;
}

// Function to process the DOMContentLoaded events array.
function DOMContentLoadedInit() {
  // quit if this function has already been called
  if (window.DOMContentLoadedInitDone) {
    return;
  }

  // flag this function so we don't do the same thing twice
  window.DOMContentLoadedInitDone = true;

  // iterates through array of registered functions 
  for (var i=0; i<window.onDOMLoadEvents.length; i++) {
    var func = window.onDOMLoadEvents[i];
    func();
  }
}

function DOMContentLoadedScheduler() {
  // quit if the init function has already been called
  if (window.DOMContentLoadedInitDone) {
    return true;
  }
  
  // First, check for Safari or KHTML.
  // Second, check for IE.

  //if DOM methods are supported, and the body element exists
  //(using a double-check including document.body, for the benefit of older moz builds [eg ns7.1] 
  //in which getElementsByTagName('body')[0] is undefined, unless this script is in the body section)
  if(/KHTML|WebKit/i.test(navigator.userAgent)) {
    if(/loaded|complete/.test(document.readyState)) {
      DOMContentLoadedInit();
    } else {
      // Not ready yet, wait a little more.
      setTimeout("DOMContentLoadedScheduler()", 250);
    }
  } else if(document.getElementById("__ie_onload")) {
    return true;
  }

  // Check for custom developer provided function.
  if(typeof DOMContentLoadedCustom == "function") {
    if(typeof document.getElementsByTagName != 'undefined' && (document.getElementsByTagName('body')[0] != null || document.body != null)) {
      // Call custom function.
      if(DOMContentLoadedCustom()) {
        DOMContentLoadedInit();
      } else {
        // Not ready yet, wait a little more.
        setTimeout("DOMContentLoadedScheduler()", 250);
      }
    }
  }
  return true;
}

// Schedule to run the init function.
setTimeout("DOMContentLoadedScheduler()", 250);

// Just in case window.onload happens first, add it there too.
addEvent(window, "load", DOMContentLoadedInit);

// If addEventListener supports the DOMContentLoaded event.
if(document.addEventListener) {
  document.addEventListener("DOMContentLoaded", DOMContentLoadedInit, false);
}

/* for Internet Explorer */
if (navigator.appName == "Microsoft Internet Explorer") {
  document.write("<script id=__ie_onload defer src=\"//:\"><\/script>");
  var script = document.getElementById("__ie_onload");
  script.onreadystatechange = function() {
    if (this.readyState == "complete") {
      DOMContentLoadedInit(); // call the onload handler
    }
  };
}
//  ###########################################################################################################################

// -----------------------------------------------------------------------------------
//
//  Lightbox v2.03.3
//  by Lokesh Dhakar - http://www.huddletogether.com
//  5/21/06
//
//  For more information on this script, visit:
//  http://huddletogether.com/projects/lightbox2/
//
//  Licensed under the Creative Commons Attribution 2.5 License - http://creativecommons.org/licenses/by/2.5/
//  
//  Credit also due to those who have helped, inspired, and made their code available to the public.
//  Including: Scott Upton(uptonic.com), Peter-Paul Koch(quirksmode.com), Thomas Fuchs(mir.aculo.us), and others.
//
//  ###########################################################################################################################
//
//  BEN: Modified for better integration with a CMS
//  Added options to save the displayed image as well as a presentation mode
//  Added a slideshow option (inspired by LyteBox v3.20, Markus F. Hay, http://www.dolem.com/lytebox)
//  VERY MANY THANKS to Lokesh Dhakar for the basic script!
//
//  ###########################################################################################################################
//
// -----------------------------------------------------------------------------------
/*

  Table of Contents
  -----------------
  Configuration
  Global Variables

  Extending Built-in Objects  
  - Object.extend(Element)
  - Array.prototype.removeDuplicates()
  - Array.prototype.empty()

  Lightbox Class Declaration
  - initialize()
  - updateImageList()
  - start()
  - changeImage()
  - resizeImageContainer()
  - showImage()
  - updateDetails()
  - updateNav()
  // ###########################################################################################################################
  - updatePresentationNav()
  - startSlideshow()
  - stopSlideshow()
  // ###########################################################################################################################
  - enableKeyboardNav()
  - disableKeyboardNav()
  - keyboardAction()
  - preloadNeighborImages()
  - end()
  
  Miscellaneous Functions
  - getPageScroll()
  - getPageSize()
  - getKey()
  - listenKey()
  - showSelectBoxes()
  - hideSelectBoxes()
  - showFlash()
  - hideFlash()
  - pause()
  - initLightbox()
  
  Function Calls
  - addLoadEvent(initLightbox)
  
*/
// -----------------------------------------------------------------------------------

//
//  Configuration
//
// ###########################################################################################################################
//
// BEN: Out here. In css now.
// var fileLoadingImage = "img/loading.gif";    
// var fileBottomNavCloseImage = "img/closelabel.gif";
// ###########################################################################################################################

var overlayOpacity = 0.8; // Controls transparency of shadow overlay

var animate = true; // Toggles resizing animations
var resizeSpeed = 400; // Controls the speed of the image resizing animations (in milliseconds)

var borderSize = 10; // If you adjust the padding in the CSS, you will need to update this variable


// ###########################################################################################################################
//
// BEN: Adding vars for localisation and presentation mode, added prev-, and nextLink-images here.
// Added var to allow saving of images and appropriate button.
// Added slideshow option and vars.
//
var lllImage = 'Image';
var lllOf = 'of';

var presentationMode; //Set during link-parsing

var allowSave = false;

var slideshowEnabled; // Set during link-parsing
var enableSlideshowAutoplay = false; // Is a slideshow active from the start?
var slideshowInterval = 5000; // Time in milliseconds before the images change during a slideshow
var slideshowAutoclose = false; // Should the lightbox be closed when the slideshow reaches the last image?
// ###########################################################################################################################


// -----------------------------------------------------------------------------------

//
//  Global Variables
//
var imageArray = new Array;
var activeImage;

// ###########################################################################################################################
//
// BEN: Adding vars for the slideshow
//
var slideshowActive; // Set during link-parsing
var slideshowIDArray = new Array();
var slideshowIDCount = 0;
// ###########################################################################################################################

// -----------------------------------------------------------------------------------

//
//  Additional methods for Element added by SU, Couloir
//  - further additions by Lokesh Dhakar (huddletogether.com)
//
Object.extend(Element, {
  getWidth: function(element) {
      element = $(element);
      return element.offsetWidth; 
  },
  setWidth: function(element,w) {
      element = $(element);
      element.style.width = w +"px";
  },
  setHeight: function(element,h) {
      element = $(element);
      element.style.height = h +"px";
  },
  setTop: function(element,t) {
      element = $(element);
      element.style.top = t +"px";
  },
  setLeft: function(element,l) {
      element = $(element);
      element.style.left = l +"px";
  },
  setSrc: function(element,src) {
      element = $(element);
      element.src = src; 
  },
  setHref: function(element,href) {
      element = $(element);
      element.href = href; 
  },
  setInnerHTML: function(element,content) {
    element = $(element);
    element.innerHTML = content;
  }
});

// -----------------------------------------------------------------------------------

//
//  Extending built-in Array object
//  - array.removeDuplicates()
//  - array.empty()
//
// BEN: Theres a prototype method that can do this!
/*Array.prototype.removeDuplicates = function () {
    for(i = 0; i < this.length; i++){
        for(j = this.length-1; j>i; j--){        
            if(this[i][0] == this[j][0]){
                this.splice(j,1);
            }
        }
    }
}*/

// -----------------------------------------------------------------------------------

// BEN: Seems that this is not used in the whole script!!!
/*Array.prototype.empty = function () {
  for(i = 0; i <= this.length; i++){
    this.shift();
  }
}*/

// -----------------------------------------------------------------------------------

//
//  Lightbox Class Declaration
//  - initialize()
//  - start()
//  - changeImage()
//  - resizeImageContainer()
//  - showImage()
//  - updateDetails()
//  - updateNav()
//  ###########################################################################################################################
//  - updatePresentationNav()
//  - startSlideshow()
//  - stopSlideshow()
//  ###########################################################################################################################
//  - enableKeyboardNav()
//  - disableKeyboardNav()
//  - keyboardNavAction()
//  - preloadNeighborImages()
//  - end()
//
//  Structuring of code inspired by Scott Upton (http://www.uptonic.com/)
//
var Lightbox = Class.create();

Lightbox.prototype = {
  
  // initialize()
  // Constructor runs on completion of the DOM loading. Calls updateImageList and then
  // the function inserts html at the bottom of the page which is used to display the shadow 
  // overlay and the image container.
  //
  initialize: function() {
      
    // ###########################################################################################################################
    //
    // BEN: This was originally under "Global Variables" but it needs to be here so that it's not overwritten via inline scripts!
    // NOTE: resizeSpeed was changed to be passed in ms, so we need to recalculate a bit here... (for compatibility with slimbox vars!)
    //  
    if(animate == true){
      //overlayDuration = 0.2;  // shadow fade in/out duration
      //if(resizeSpeed > 10){ resizeSpeed = 10;}
      //if(resizeSpeed < 1){ resizeSpeed = 1;}
      //resizeDuration = (11 - resizeSpeed) * 0.15;
      overlayDuration = resizeSpeed/1000;
      resizeDuration = resizeSpeed/1000;
    } else { 
      overlayDuration = 0;
      resizeDuration = 0;
    }
    // ###########################################################################################################################
    
    this.updateImageList();

    // Code inserts html at the bottom of the page that looks similar to this:
    //
    //  <div id="overlay"></div>
    //  <div id="lightbox">
    //    <div id="outerImageContainer">
    //      <div id="imageContainer">
    //        <img id="lightboxImage">
    //        <div style="" id="hoverNav">
    //          <a href="#" id="prevLink"></a>
    //          <a href="#" id="nextLink"></a>
    //        </div>
    //        <div id="loading">
    //          <a href="#" id="loadingLink">
    //            <img src="images/loading.gif">
    //          </a>
    //        </div>
    //      </div>
    //    </div>
    //    <div id="imageDataContainer">
    //      <div id="imageData">
    //        <div id="imageDetails">
    //          <span id="caption"></span>
    //          <span id="numberDisplay"></span>
    //        </div>
    //        <div id="bottomNav">
    //          <a href="#" id="bottomNavClose">
    //            <img src="images/close.gif">
    //          </a>
    //        </div>
    //      </div>
    //    </div>
    //  </div>


    var objBody = document.getElementsByTagName("body").item(0);
    
    var objOverlay = document.createElement("div");
    objOverlay.setAttribute('id','overlay');
    objOverlay.style.display = 'none';
    objOverlay.onclick = function() { myLightbox.end(); }
    objBody.appendChild(objOverlay);
    
    var objLightbox = document.createElement("div");
    objLightbox.setAttribute('id','lbLightbox');
    objLightbox.style.display = 'none';
    objLightbox.onclick = function(e) { // close Lightbox is user clicks shadow overlay
      if (!e) var e = window.event;
      var clickObj = Event.element(e).id;
      if ( clickObj == 'lbLightbox') {
        myLightbox.end();
      }
    };
    objBody.appendChild(objLightbox);
      
    var objOuterImageContainer = document.createElement("div");
    objOuterImageContainer.setAttribute('id','lbOuterImageContainer');
    objLightbox.appendChild(objOuterImageContainer);

    // When Lightbox starts it will resize itself from 250 by 250 to the current image dimension.
    // If animations are turned off, it will be hidden as to prevent a flicker of a
    // white 250 by 250 box.
    if(animate){
      Element.setWidth('lbOuterImageContainer', 250);
      Element.setHeight('lbOuterImageContainer', 250);      
    } else {
      Element.setWidth('lbOuterImageContainer', 1);
      Element.setHeight('lbOuterImageContainer', 1);      
    }

    var objImageContainer = document.createElement("div");
    objImageContainer.setAttribute('id','lbImageContainer');
    objOuterImageContainer.appendChild(objImageContainer);
  
    var objLightboxImage = document.createElement("img");
    objLightboxImage.setAttribute('id','lightboxImage');
    objImageContainer.appendChild(objLightboxImage);
  
    var objHoverNav = document.createElement("div");
    objHoverNav.setAttribute('id','lbHoverNav');
    objImageContainer.appendChild(objHoverNav);
  
    var objPrevLink = document.createElement("a");
    objPrevLink.setAttribute('id','prevLink');
    objPrevLink.setAttribute('href','#');   
    objHoverNav.appendChild(objPrevLink);     
    
    var objNextLink = document.createElement("a");
    objNextLink.setAttribute('id','nextLink');
    objNextLink.setAttribute('href','#');
    objHoverNav.appendChild(objNextLink);
    
    var objLoading = document.createElement("div");
    objLoading.setAttribute('id','lbLoading');
    objImageContainer.appendChild(objLoading);
  
    var objLoadingLink = document.createElement("a");
    objLoadingLink.setAttribute('id','loadingLink');
    objLoadingLink.setAttribute('href','#');
    objLoadingLink.onclick = function() { myLightbox.end(); return false; }
    objLoading.appendChild(objLoadingLink);

    var objImageDataContainer = document.createElement("div");
    objImageDataContainer.setAttribute('id','lbImageDataContainer');
    objLightbox.appendChild(objImageDataContainer);

    var objImageData = document.createElement("div");
    objImageData.setAttribute('id','lbImageData');
    objImageDataContainer.appendChild(objImageData);
  
    var objImageDetails = document.createElement("div");
    objImageDetails.setAttribute('id','lbImageDetails');
    objImageData.appendChild(objImageDetails);
  
    var objCaption = document.createElement("span");
    objCaption.setAttribute('id','lbCaption');
    objImageDetails.appendChild(objCaption);
  
    var objNumberDisplay = document.createElement("span");
    objNumberDisplay.setAttribute('id','lbNumber');
    objImageDetails.appendChild(objNumberDisplay);
    
    // ###########################################################################################################################
    //
    // BEN: Adding element for the display of presentation mode
    //
    var objPresentMode = document.createElement("span");
    objPresentMode.setAttribute('id','lbPresent');
    objImageDetails.appendChild(objPresentMode);
    // ###########################################################################################################################
    
    var objBottomNav = document.createElement("div");
    objBottomNav.setAttribute('id','bottomNav');
    objImageData.appendChild(objBottomNav);
    
    // ###########################################################################################################################
    //
    // BEN: Adding play/pause buttons for the slideshow
    //
    var objBottomNavPlayLink = document.createElement("a");
    objBottomNavPlayLink.setAttribute('id','playLink');
    objBottomNavPlayLink.setAttribute('href','#');
    objBottomNavPlayLink.onclick = function() { myLightbox.startSlideshow(); return false; }
    objBottomNav.appendChild(objBottomNavPlayLink);
    
    var objBottomNavPauseLink = document.createElement("a");
    objBottomNavPauseLink.setAttribute('id','pauseLink');
    objBottomNavPauseLink.setAttribute('href','#');
    objBottomNavPauseLink.onclick = function() { myLightbox.stopSlideshow(); return false; }
    objBottomNav.appendChild(objBottomNavPauseLink);
    // ###########################################################################################################################
    
    // ###########################################################################################################################
    //
    // BEN: Adding a save-button if saving is allowed
    //
    if (allowSave) {
      var objBottomNavSaveLink = document.createElement("a");
      objBottomNavSaveLink.setAttribute('id','saveLink');
      objBottomNavSaveLink.setAttribute('target','_blank');
      objBottomNav.appendChild(objBottomNavSaveLink);
    }
    // ###########################################################################################################################
    
    var objBottomNavCloseLink = document.createElement("a");
    objBottomNavCloseLink.setAttribute('id','closeLink');
    objBottomNavCloseLink.setAttribute('href','#');
    objBottomNavCloseLink.onclick = function() { myLightbox.end(); return false; }
    objBottomNav.appendChild(objBottomNavCloseLink);
  },


  //
  // updateImageList()
  // Loops through anchor tags looking for 'lightbox' references and applies onclick
  // events to appropriate links. You can rerun after dynamically adding images w/ajax.
  //
  updateImageList: function() { 
    if (!document.getElementsByTagName){ return; }
    var anchors = document.getElementsByTagName('a');
    var areas = document.getElementsByTagName('area');

    // loop through all anchor tags
    for (var i=0; i<anchors.length; i++){
      var anchor = anchors[i];
      
      var relAttribute = String(anchor.getAttribute('rel'));
      
      // use the string.match() method to catch 'lightbox' references in the rel attribute
      if (anchor.getAttribute('href') && (relAttribute.toLowerCase().match('lightbox'))){
        anchor.onclick = function () {myLightbox.start(this); return false;}
      }
    }

    // loop through all area tags
    // todo: combine anchor & area tag loops
    for (var i=0; i< areas.length; i++){
      var area = areas[i];
      
      var relAttribute = String(area.getAttribute('rel'));
      
      // use the string.match() method to catch 'lightbox' references in the rel attribute
      if (area.getAttribute('href') && (relAttribute.toLowerCase().match('lightbox'))){
        area.onclick = function () {myLightbox.start(this); return false;}
      }
    }
  },
  
  
  //
  //  start()
  //  Display overlay and lightbox. If image is part of a set, add siblings to imageArray.
  //
  start: function(imageLink) {
    
    hideSelectBoxes();
    hideFlash();

    // stretch overlay to fill page and fade in
    var arrayPageSize = getPageSize();
    
    // ###########################################################################################################################
    // BEN: The setting of the width is not necessary as it's set to 100% in css. If user resizes browser during lightshow it breaks.
    //Element.setWidth('overlay', arrayPageSize[0]);
    Element.setHeight('overlay', arrayPageSize[1]);
    // ###########################################################################################################################

    new Effect.Appear('overlay', { duration: overlayDuration, from: 0.0, to: overlayOpacity });

    imageArray = [];
    imageNum = 0;   

    if (!document.getElementsByTagName){ return; }
    var anchors = document.getElementsByTagName( imageLink.tagName);

    // if image is NOT part of a set..
    if((imageLink.getAttribute('rel') == 'lightbox')){
      // add single image to imageArray
      imageArray.push(new Array(imageLink.getAttribute('href'), imageLink.getAttribute('title')));
      
      // ###########################################################################################################################
      //
      // BEN: Make sure the presentation mode and/or slideshow is disabled for single images!
      //
      presentationMode = false; 
      slideshowEnabled = false;
      slideshowActive = false;
      $('pauseLink').hide();
      $('playLink').hide();
      // ###########################################################################################################################
    } else {
    // if image is part of a set..

      // loop through anchors, find other images in set, and add them to imageArray
      for (var i=0; i<anchors.length; i++){
        var anchor = anchors[i];
        if (anchor.getAttribute('href') && (anchor.getAttribute('rel') == imageLink.getAttribute('rel')) && anchor.getElementsByTagName('img').length > 0){
          imageArray.push(new Array(anchor.getAttribute('href'), anchor.childNodes[0].alt));
        }
      }
      
      // ############### BEN: Changed this to the "normal" prototype function that exists for these things!
      // probably this is even not wanted!? Disable completely?
      //imageArray.removeDuplicates();
      //imageArray.uniq();
      while(imageArray[imageNum][0] != imageLink.getAttribute('href')) { imageNum++;}
      
      // ###########################################################################################################################
      //
      // BEN: Adding a search for 'present' here. If matched activate presentation mode otherwise reset to false
      // Added another search for 'slideshow' to activate slideshow
      //
      if(imageLink.getAttribute('rel').toLowerCase().match('present')){
        presentationMode = true;
      } else {
        presentationMode = false;
      }
      if(imageLink.getAttribute('rel').toLowerCase().match('slideshow')){
        slideshowEnabled = true;
        slideshowActive = enableSlideshowAutoplay;
      } else {
        slideshowEnabled = false;
        slideshowActive = false;
        $('pauseLink').hide();
        $('playLink').hide();
      }
      // ###########################################################################################################################
    }

    // calculate top and left offset for the lightbox 
    var arrayPageScroll = getPageScroll();
    var lightboxTop = arrayPageScroll[1] + (arrayPageSize[3] / 10);
    var lightboxLeft = arrayPageScroll[0];
    Element.setTop('lbLightbox', lightboxTop);
    Element.setLeft('lbLightbox', lightboxLeft);
    
    $('lbLightbox').show();
    
    this.changeImage(imageNum); 
  },

  //
  //  changeImage()
  //  Hide most elements and preload image in preparation for resizing image container.
  //
  changeImage: function(imageNum) { 
    
    activeImage = imageNum; // update global var

    // hide elements during transition
    if(animate){ $('lbLoading').show();}
    $('lightboxImage').hide();
    $('lbHoverNav').hide();
    $('prevLink').hide();
    $('nextLink').hide();
    $('lbImageDataContainer').hide();
    $('lbNumber').hide();
    
    imgPreloader = new Image();
    
    // once image is preloaded, resize image container
    imgPreloader.onload=function(){
      Element.setSrc('lightboxImage', imageArray[activeImage][0]);
      myLightbox.resizeImageContainer(imgPreloader.width, imgPreloader.height);
      // ###########################################################################################################################
      //
      // BEN: Adding link to image if saving is allowed
      //
      if (allowSave) {
        document.getElementById('saveLink').setAttribute('href',imageArray[activeImage][0]);
      }
      // ###########################################################################################################################
      imgPreloader.onload=function(){}; //  clear onLoad, IE behaves irratically with animated gifs otherwise 
    }
    imgPreloader.src = imageArray[activeImage][0];    
  },

  //
  //  resizeImageContainer()
  //
  resizeImageContainer: function( imgWidth, imgHeight) {

    // get curren width and height
    this.widthCurrent = Element.getWidth('lbOuterImageContainer');
    this.heightCurrent = Element.getHeight('lbOuterImageContainer');

    // get new width and height
    var widthNew = (imgWidth  + (borderSize * 2));
    var heightNew = (imgHeight  + (borderSize * 2));

    // scalars based on change from old to new
    this.xScale = ( widthNew / this.widthCurrent) * 100;
    this.yScale = ( heightNew / this.heightCurrent) * 100;

    // calculate size difference between new and old image, and resize if necessary
    wDiff = this.widthCurrent - widthNew;
    hDiff = this.heightCurrent - heightNew;

    if(!( hDiff == 0)){ new Effect.Scale('lbOuterImageContainer', this.yScale, {scaleX: false, duration: resizeDuration, queue: 'front'}); }
    if(!( wDiff == 0)){ new Effect.Scale('lbOuterImageContainer', this.xScale, {scaleY: false, delay: resizeDuration, duration: resizeDuration}); }

    // if new and old image are same size and no scaling transition is necessary, 
    // do a quick pause to prevent image flicker.
    if((hDiff == 0) && (wDiff == 0)){
      if (navigator.appVersion.indexOf("MSIE")!=-1){ pause(250); } else { pause(100);} 
    }

    Element.setHeight('prevLink', imgHeight); 
    Element.setHeight('nextLink', imgHeight);
    Element.setWidth( 'lbImageDataContainer', widthNew);

    this.showImage();
  },
  
  //
  //  showImage()
  //  Display image and begin preloading neighbors.
  //
  showImage: function(){
    $('lbLoading').hide();
    new Effect.Appear('lightboxImage', { duration: resizeDuration, queue: 'end', afterFinish: function(){ myLightbox.updateDetails(); } });
    // ###########################################################################################################################
    //
    // BEN: Adding slideshow options
    //
    if (slideshowActive) {
      // If last image in set...
      if(activeImage == (imageArray.length -1)){
        // ...either shut down the lightbox if configured to do so...
        if(slideshowAutoclose) {
          slideshowIDArray[slideshowIDCount++] = setTimeout('myLightbox.end()',slideshowInterval+resizeSpeed*2);
        // ...or stop the slideshow
        } else {
          myLightbox.stopSlideshow();
        }         
      // If not last image in set, display next image in appropriate time
      } else {    
        slideshowIDArray[slideshowIDCount++] = setTimeout('myLightbox.changeImage('+(activeImage+1)+')',slideshowInterval+resizeSpeed*2);
      }
    }
    // ###########################################################################################################################
    this.preloadNeighborImages();
  },

  //
  //  updateDetails()
  //  Display caption, image number, and bottom nav.
  //
  updateDetails: function() {
  
    // if caption is not null
    if(imageArray[activeImage][1]){
      $('lbCaption').show();
      Element.setInnerHTML( 'lbCaption', imageArray[activeImage][1]);
    } else {
      $('lbCaption').hide();
    }
    
    // if image is part of set display 'Image x of x' 
    if(imageArray.length > 1){
      $('lbNumber').show();
      Element.setInnerHTML( 'lbNumber', " " + lllImage + " " + eval(activeImage + 1) + " " + lllOf + " " + imageArray.length);
    }
    
    // ###########################################################################################################################
    //
    // BEN: Adding presentation mode
    // Added slideshow controls
    //
    if(presentationMode){
      // Hide numberDisplay again
      $('lbNumber').hide();
      myLightbox.updatePresentationNav();
    } else {
      $('lbPresent').hide();
    }
    
    if(slideshowEnabled) {
      if(slideshowActive) {
        $('playLink').hide();
        $('pauseLink').show();  
      } else {
        $('pauseLink').hide();
        $('playLink').show();
      }
    }
    // ###########################################################################################################################

    new Effect.Parallel(
      [ new Effect.SlideDown( 'lbImageDataContainer', { sync: true, duration: resizeDuration, from: 0.0, to: 1.0 }), 
        new Effect.Appear('lbImageDataContainer', { sync: true, duration: resizeDuration }) ], 
      { duration: resizeDuration, afterFinish: function() {
        // update overlay size and update nav
        var arrayPageSize = getPageSize();
        Element.setHeight('overlay', arrayPageSize[1]);
        myLightbox.updateNav();
        }
      } 
    );
  },

  //
  //  updateNav()
  //  Display appropriate previous and next hover navigation.
  //
  updateNav: function() {

    $('lbHoverNav').show();       

    // if not first image in set, display prev image button
    if(activeImage != 0){
      $('prevLink').show();
      // ###########################################################################################################################
      //
      //  BEN: Stop slideshow if user manually interrupts
      //
      if (!slideshowActive) {
        // No slideshow -> normal behaviour
        document.getElementById('prevLink').onclick = function() {
          myLightbox.changeImage(activeImage - 1); return false;
        }
      } else {
        // Stop slideshow
        document.getElementById('prevLink').onclick = function() {
          myLightbox.stopSlideshow();
          myLightbox.changeImage(activeImage - 1);
          return false;
        }
      }
      // ###########################################################################################################################
    }

    // if not last image in set, display next image button
    if(activeImage != (imageArray.length - 1)){
      $('nextLink').show();
      // ###########################################################################################################################
      //
      //  BEN: Stop slideshow if user manually interrupts
      //
      if (!slideshowActive) {
        // No slideshow -> normal behaviour
        document.getElementById('nextLink').onclick = function() {
          myLightbox.changeImage(activeImage + 1); return false;
        }
      } else {
        // Stop slideshow
        document.getElementById('nextLink').onclick = function() {
          myLightbox.stopSlideshow();
          myLightbox.changeImage(activeImage + 1);
          return false;
        }
      }
    }
    
    this.enableKeyboardNav();
  },
  
  // ###########################################################################################################################
  //
  // BEN: updatePresentationNav()
  // Display presentation mode navigation
  // Added support for slideshow
  //
  updatePresentationNav: function() {   
    var content = '';
    for(var i=1; i<=(imageArray.length); i++){
      if((i-1) == activeImage){
        if(!slideshowActive){
          content += '<a class="act" href="#" id="pmi'+i+'" onClick="myLightbox.changeImage('+(i-1)+'); return false;">'+i+'</a> ';
        } else {
          content += '<a class="act" href="#" id="pmi'+i+'" onClick="myLightbox.stopSlideshow(); myLightbox.changeImage('+(i-1)+'); return false;">'+i+'</a> ';
        }
      } else {
        if (!slideshowActive){
          content += '<a class="no" href="#" id="pmi'+i+'" onClick="myLightbox.changeImage('+(i-1)+'); return false;">'+i+'</a> ';    
        } else {
          content += '<a class="no" href="#" id="pmi'+i+'" onClick="myLightbox.stopSlideshow(); myLightbox.changeImage('+(i-1)+'); return false;">'+i+'</a> ';
        }
      }
    }
    $('lbPresent').show();
    Element.setInnerHTML( 'lbPresent', content);
  },
  // ###########################################################################################################################

  // ###########################################################################################################################
  //
  // BEN: startSlideshow()
  // Sets global var slideshow to true, changes to next image to initialise timeouts, if it's the last image shut down the lightbox or start again from the first image
  //
  startSlideshow: function() {
    if(activeImage != (imageArray.length - 1)){
      slideshowActive = true;
      myLightbox.changeImage(activeImage + 1);
    } else {
      if(slideshowAutoclose) {
        myLightbox.end();
      } else {
        slideshowActive = true;
        myLightbox.changeImage(0);
      }
    }
  },
  // ###########################################################################################################################

  // ###########################################################################################################################
  //
  // BEN: stopSlideshow()
  // Sets global var slideshow to false, clears all timeouts, toggles visibility of play/pause-buttons
  //
  stopSlideshow: function() { 
    if(!slideshowActive){return false;}
    slideshowActive = false;
    for (var i=0;i<slideshowIDCount;i++) { window.clearTimeout(slideshowIDArray[i]);}
    $('pauseLink').hide();
    $('playLink').show(); 
  },
  // ###########################################################################################################################

  //
  //  enableKeyboardNav()
  //
  enableKeyboardNav: function() {
    document.onkeydown = this.keyboardAction; 
  },

  //
  //  disableKeyboardNav()
  //
  disableKeyboardNav: function() {
    document.onkeydown = '';
  },

  //
  //  keyboardAction()
  //
  keyboardAction: function(e) {
    if (e == null) { // ie
      keycode = event.keyCode;
      escapeKey = 27;
    } else { // mozilla
      keycode = e.keyCode;
      escapeKey = e.DOM_VK_ESCAPE;
    }

    key = String.fromCharCode(keycode).toLowerCase();
    
    if((key == 'x') || (key == 'o') || (key == 'c') || (keycode == escapeKey)){ // close lightbox
      myLightbox.end();
    } else if((key == 'p') || (keycode == 37)){ // display previous image
      if(activeImage != 0){
        myLightbox.disableKeyboardNav();
        // ###########################################################################################################################
        //
        //  BEN: Stop slideshow if user manually interrupts
        //
        if(slideshowActive){
          myLightbox.stopSlideshow();
        }
        // ###########################################################################################################################
        myLightbox.changeImage(activeImage - 1);
      }
    } else if((key == 'n') || (keycode == 39)){ // display next image
      if(activeImage != (imageArray.length - 1)){
        myLightbox.disableKeyboardNav();
        // ###########################################################################################################################
        //
        //  BEN: Stop slideshow if user manually interrupts
        //
        if(slideshowActive){
          myLightbox.stopSlideshow();
        }
        // ###########################################################################################################################
        myLightbox.changeImage(activeImage + 1);
      }
    // ###########################################################################################################################
    //
    //  BEN: Adding keys for slideshow
    //
    } else if((key == 's') || (keycode == 83)){ // toggle slideshow on/off
      if(slideshowActive){
        myLightbox.stopSlideshow();
      } else {
        myLightbox.startSlideshow();
      }
    // ###########################################################################################################################
    }
  },

  //
  //  preloadNeighborImages()
  //  Preload previous and next images.
  //
  preloadNeighborImages: function(){

    if((imageArray.length - 1) > activeImage){
      preloadNextImage = new Image();
      preloadNextImage.src = imageArray[activeImage + 1][0];
    }
    if(activeImage > 0){
      preloadPrevImage = new Image();
      preloadPrevImage.src = imageArray[activeImage - 1][0];
    }
  
  },

  //
  //  end()
  //
  end: function() {
    this.disableKeyboardNav();
    $('lbLightbox').hide();
    new Effect.Fade('overlay', { duration: overlayDuration});
    showSelectBoxes();
    showFlash();
    // ###########################################################################################################################
    //
    //  BEN: If slideshow was active clear all timeouts
    //
    if (slideshowActive) {
      for (var i=0;i<slideshowIDCount;i++) { window.clearTimeout(slideshowIDArray[i]);}
      slideshowActive = false;
    }
    // ###########################################################################################################################
  }
}

// -----------------------------------------------------------------------------------

//
// getPageScroll()
// Returns array with x,y page scroll values.
// Core code from - quirksmode.com
//
function getPageScroll(){

  var xScroll, yScroll;

  if (self.pageYOffset) {
    yScroll = self.pageYOffset;
    xScroll = self.pageXOffset;
  } else if (document.documentElement && document.documentElement.scrollTop){  // Explorer 6 Strict
    yScroll = document.documentElement.scrollTop;
    xScroll = document.documentElement.scrollLeft;
  } else if (document.body) {// all other Explorers
    yScroll = document.body.scrollTop;
    xScroll = document.body.scrollLeft; 
  }

  arrayPageScroll = new Array(xScroll,yScroll) 
  return arrayPageScroll;
}

// -----------------------------------------------------------------------------------

//
// getPageSize()
// Returns array with page width, height and window width, height
// Core code from - quirksmode.com
// Edit for Firefox by pHaez
//
function getPageSize(){
  
  var xScroll, yScroll;
  
  if (window.innerHeight && window.scrollMaxY) {  
    xScroll = window.innerWidth + window.scrollMaxX;
    yScroll = window.innerHeight + window.scrollMaxY;
  } else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
    xScroll = document.body.scrollWidth;
    yScroll = document.body.scrollHeight;
  } else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
    xScroll = document.body.offsetWidth;
    yScroll = document.body.offsetHeight;
  }
  
  var windowWidth, windowHeight;
  
//  console.log(self.innerWidth);
//  console.log(document.documentElement.clientWidth);

  if (self.innerHeight) { // all except Explorer
    if(document.documentElement.clientWidth){
      windowWidth = document.documentElement.clientWidth; 
    } else {
      windowWidth = self.innerWidth;
    }
    windowHeight = self.innerHeight;
  } else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
    windowWidth = document.documentElement.clientWidth;
    windowHeight = document.documentElement.clientHeight;
  } else if (document.body) { // other Explorers
    windowWidth = document.body.clientWidth;
    windowHeight = document.body.clientHeight;
  } 
  
  // for small pages with total height less then height of the viewport
  if(yScroll < windowHeight){
    pageHeight = windowHeight;
  } else { 
    pageHeight = yScroll;
  }

//  console.log("xScroll " + xScroll)
//  console.log("windowWidth " + windowWidth)

  // for small pages with total width less then width of the viewport
  if(xScroll < windowWidth){  
    pageWidth = xScroll;    
  } else {
    pageWidth = windowWidth;
  }
//  console.log("pageWidth " + pageWidth)

  arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight) 
  return arrayPageSize;
}

// -----------------------------------------------------------------------------------

//
// getKey(key)
// Gets keycode. If 'x' is pressed then it hides the lightbox.
//
function getKey(e){
  if (e == null) { // ie
    keycode = event.keyCode;
  } else { // mozilla
    keycode = e.which;
  }
  key = String.fromCharCode(keycode).toLowerCase();
  
  if(key == 'x'){
  }
}

// -----------------------------------------------------------------------------------

//
// listenKey()
//
function listenKey () { document.onkeypress = getKey; }
  
// ---------------------------------------------------

function showSelectBoxes(){
  var selects = document.getElementsByTagName("select");
  for (i = 0; i != selects.length; i++) {
    selects[i].style.visibility = "visible";
  }
}

// ---------------------------------------------------

function hideSelectBoxes(){
  var selects = document.getElementsByTagName("select");
  for (i = 0; i != selects.length; i++) {
    selects[i].style.visibility = "hidden";
  }
}

// ---------------------------------------------------

function showFlash(){
  var flashObjects = document.getElementsByTagName("object");
  for (i = 0; i < flashObjects.length; i++) {
    flashObjects[i].style.visibility = "visible";
  }

  var flashEmbeds = document.getElementsByTagName("embed");
  for (i = 0; i < flashEmbeds.length; i++) {
    flashEmbeds[i].style.visibility = "visible";
  }
}

// ---------------------------------------------------

function hideFlash(){
  var flashObjects = document.getElementsByTagName("object");
  for (i = 0; i < flashObjects.length; i++) {
    flashObjects[i].style.visibility = "hidden";
  }

  var flashEmbeds = document.getElementsByTagName("embed");
  for (i = 0; i < flashEmbeds.length; i++) {
    flashEmbeds[i].style.visibility = "hidden";
  }

}


// ---------------------------------------------------

//
// pause(numberMillis)
// Pauses code execution for specified time. Uses busy code, not good.
// Help from Ran Bar-On [ran2103@gmail.com]
//

function pause(ms){
  var date = new Date();
  curDate = null;
  do{var curDate = new Date();}
  while( curDate - date < ms);
}
/*
function pause(numberMillis) {
  var curently = new Date().getTime() + sender;
  while (new Date().getTime();  
}
*/
// ---------------------------------------------------



function initLightbox() { myLightbox = new Lightbox(); }
//  ###########################################################################################################################
//
// BEN: This implements the very first block: initialise the lightbox when DOM is ready (which is much earlier than loading of the whole page)
//
//Event.observe(window, 'load', initLightbox, false);
addEvent(window,'DOMContentLoaded', initLightbox);
//  ###########################################################################################################################