// -----------------------------------------------------------------------------------
//
// LightboxEx 2.02,
// this is a modified version of Lightbox 2.02 by Lokesh Dhakar - BIG credit to him for
// creating such good script and making it available to the public.
//
// Modified by Oleksander Havrylyuk, ahavrilu@yahoo.com, http://alexphotostudio.blogspot.com
// Sound bridge by Gustavo Ribeiro Amigo, Copyright (c) 2006

/*
Updates:
8/16/2006 - Fixed issue with PNG support in IE when play and close button graphics where not visible.

*/

// List of new features:
//    - display set of images in slideshow mode
// - stop/resume playing of slideshow
// - play music during slideshow playback
// - customize slideshow parameters
// - PNG image support for Internet Explorer
// - new graphics and look
//
// -----------------------------------------------------------------------------------
// Lightbox v2.02 by Lokesh Dhakar - http://www.huddletogether.com
// 3/31/06
//
// 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.org), Thomas Fuchs(mir.aculo.us), 
// and others.
// -----------------------------------------------------------------------------------

// -----------------------------------------------------------------------------------
//
// Default Configuration Parameters
//  Changing those parameters will effect global behavior of LightboxEx
//
var resizeSpeed            = 7;  // controls the speed of the image resizing (1=slowest and 10=fastest)
var borderSize                = 10; //if you adjust the padding in the CSS, you will need to update this variable

// ------- Slideshow options ---------------------------------------------------------

var slideShowWidth            = 604;   // -1 - size slideshow window based on each image
var slideShowHeight        = 454;   // -1 - size slideshow window based on each image
var navigationBarWidth        = -1;    // -1 - size navigation bar based on width of each image
var slideshow              = 1;     // 1 slideshow auto start. Set 0 if you want to disable starting slideshow  automaticaly
var foreverLoop            = 1;  // Set 0 if want to stop on the last image or Set it to 1 for Infinite loop feature
var loopInterval           = 4000;  // image swap interval in miliseconds
var loopMusic              = true; //loops music if it is shorter then slideshow

// ------- Images path -----------------------------------------------------------------
var homeURL                = "http://www.portray.uk.com/"; //URL to your installation directory

var fileLoadingImage          = homeURL + "images/loading.gif";      
var fileBottomNavCloseImage   = homeURL + "images/close.png";
var SlideShowStartImage       = homeURL + "images/play.png";
var SlideShowStopImage        = homeURL + "images/stop.png";
var MusicOnImage           = homeURL + "images/music_on.png";
var MusicOffImage             = homeURL + "images/music_off.png";
var replayImage               = homeURL + "images/replay.png";
var blankSrc               = homeURL + "images/blank.gif";

var imageDataContainerOpacity   = 0.6;

var resize                 = 0;  // Set 0 to disable auto-resizing

var SoundBridgeSWF            = homeURL + "js/SoundBridge.swf";

// ------- End of Configuration Parameters --------------------------------------------------------------------






















//
// Global Variables
//

var imageArray = new Array;
var activeImage;

if(resizeSpeed > 10){ resizeSpeed = 10;}
if(resizeSpeed < 1){ resizeSpeed = 1;}
resizeDuration = (11 - resizeSpeed) * 0.15;

var so = null;
var objSlideShowImage;
var objLightboxImage;
var objImageDataContainer;
var objSpeakerImage;
var objBottomNavCloseImage;

var keyPressed = false;
var slideshowMusic = null;
var firstTime = 1;
var closeWindow = false;

var saveSlideshow;
var saveForeverLoop;
var saveLoopInterval;
var saveSlideShowWidth;
var saveSlideShowHeight;
var saveLoopMusic;
var saveNavigationBarWidth;

// -----------------------------------------------------------------------------------
var timeStart = 0;

//PNG image support
var isPNGSupported = !(/MSIE ((5\.5)|(6\.0))/.test(navigator.userAgent) && (navigator.platform == "Win32"));
var realSrc;

function propertyChanged() {
   
   if (isPNGSupported) return;

   var pName = event.propertyName;

   //check if it is the right property
   if (pName != "src") return;

   //if not set to blank
   if (!new RegExp(blankSrc).test(event.srcElement.src)) {
      fixPNGImage(event.srcElement);
   }
}

function fixPNGImage(element) {

   if (isPNGSupported) return;

   var src = element.src;

   // check for real change
   if (src == realSrc && /\.png$/i.test(src)) {
     element.src = blankSrc;
     return;
   }

   if ( ! new RegExp(blankSrc).test(src)) {
     //save old src
     realSrc = src;
   }

   // check for png
   if (/\.png$/i.test(realSrc)) {
     element.src = blankSrc;
     element.runtimeStyle.filter = "progid:DXImageTransform.Microsoft." +
               "AlphaImageLoader(src='" + src + "',sizingMethod='scale')";
   }
   else {
     // remove filter
     element.runtimeStyle.filter = "";
   }
}


// Opens a new slideshow window. You must have a <slideshow>.html file present, which contains links
// to you images. slideshow - is the name of your set in lightbox[slideshow] declaration. They must match.
//
function openSlideShow(slideshowName) {
  var wW = 800;
  var wH = 620;
  var X = (screen.width - wW) /2;
  var Y = (screen.height - wH)/3;

  var pageURL = homeURL + slideshowName + '.html';
  var slideshowWindow = window.open(pageURL, '_blank',
          'width=' + wW + ',height=' + wH + 
          ',top=' + Y + ',left=' + X + ',screenX=' + X + ',screenY=' + Y +
          ',toolbar=0,scrollbars=0,resizable=0,location=0,status=0');

   if(slideshowWindow==null || typeof(slideshowWindow)=="undefined"){
      alert("Can't open a slideshow window.\nPlease, try again when the page gets reloaded.");
      location.reload();      
   }

  //if (!slideshowWindow.opener) slideshowWindow.opener = self;
}



function startSlideshow() {
   closeWindow = true;
   init();
   var anchors = document.getElementsByTagName('a');
   if (anchors.length != 0) {
      var anchor = anchors[0];
      //window.setTimeout(function(a) {myLightbox.start(a);}, 1000, anchor);           
      myLightbox.start(anchor);
   }
}


//
// 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";
   },
   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;
   }
});

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

// http://4umi.com/web/javascript/array.htm
// Extending built-in Array object
// - array.removeDuplicates()
// - array.empty()
//
Array.prototype.removeDuplicates = function () {
   for(i = 1; i < this.length; i++){
      if(this[i][0] == this[i-1][0]){
         this.splice(i,1);
      }
   }
}

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

Array.prototype.empty = function () {
   for(i = 0; i <= this.length; i++){
      this.shift();
   }
}
    Sound.trace = function(value, isJavascript) {
        // tracing disabled
    } 
    
// -----------------------------------------------------------------------------------

// Music Player Class
   function Player () {
      this.paused = true;
      this.stoped = true;

      this.options = new Object();
      this.options.swfLocation = SoundBridgeSWF;
      this.sound = new Sound(this.options);
      
      this.position = 0;
      this.frequency = 1000;
      this.isLoaded = false;
      this.duration = 0;
      this.bytesTotal = 0;
      this.callback = this.registerCallback();
   }
    
    
   Player.prototype.onTimerEvent = function() {
     var isDurationOk = false
      if(!this.paused) {

          var position = this.sound.getPosition();
          if(!position) position = 0;
          if(position != this.position && position != 0) {
             this.onPlaying();
          } else {
             this.onBuffering();
          }
          this.position = position;          
          
          var duration = 0;                   
          duration = this.sound.getDuration();
          
          if(!duration) duration = 0;
          if(duration == this.duration && duration != 0) {
             isDurationOk = true;             
          }
          
          this.duration = duration;
          var progress = position/duration;
          if(isDurationOk) {
              this.setProgressBar(progress);
          }
          
          var isBytesTotalOk = false;
          
          var bytesTotal = this.sound.getBytesTotal();
          if(bytesTotal == this.bytesTotal) {
              isBytesTotalOk = true;    
          }
          this.bytesTotal = bytesTotal;
          
          if(isBytesTotalOk) {
              var loaded =  this.sound.getBytesLoaded()/bytesTotal;
              this.setLoadedBar(loaded);
          }
          
          if (progress == 1 && duration != 0 && position != 0) {
            this.onSoundComplete();
          }
          
      }
   }
      
   Player.prototype.registerCallback = function() {
      return setInterval(this.onTimerEvent.bind(this), this.frequency);
   }
      
   Player.prototype.clearCallback = function() {
         clearInterval(this.callback);
         this.callback = null;
   }
   
   Player.prototype.setProgressBar = function(progress) {
        if(!progress) progress = 0;        
   }
   
   Player.prototype.setLoadedBar = function(loaded) {
         if(!loaded) loaded = 0;
   }   
      
   Player.prototype.onPlaying = function() {   
         //Element.show('caption');
         //Element.setInnerHTML( 'caption', this.sound.getId3());
   }
   
   Player.prototype.onPause = function() {
   }   
   
   Player.prototype.onBuffering = function() {      
   }   

   Player.prototype.onSoundComplete = function() {
      if(!this.paused) {
         if (loopMusic) {
         this.onForward();
        }
      }
   }

   Player.prototype.onForward = function() {
         this.position = 0;
         this.duration = 0;
         this.sound.start(this.duration/1000, 1);
         this.sound.stop();
         this.loadTrack(this.track);
         this.stoped = true;
         this.setProgressBar(0);
         this.setLoadedBar(0);
         if(!this.paused) {            
            this.paused = true;
            this.play();
         }
   }   

   Player.prototype.fadeOut = function() {
           for (var i=this.sound.getVolume()-1; i>=0; i--) {         
            this.sound.setVolume(i);
            //pause(1);
         }              
   }   
   
   Player.prototype.fadeIn = function() {
           for (var i=1; i <= 100; i++) {       
            this.sound.setVolume(i);
            //pause(1);
         }              
   }
   
   Player.prototype.toggleVolume = function() {
         if (this.paused) return;
         var volume = this.sound.getVolume();
         if (volume == 0) {
            this.fadeIn();
            //this.sound.setVolume(100);           
            objSpeakerImage.setAttribute('src', MusicOnImage);
         }
        if (volume == 100) {
         this.fadeOut();
         //this.sound.setVolume(0);
         objSpeakerImage.setAttribute('src', MusicOffImage);
        }
   }
   
   Player.prototype.play = function() {   
      if(this.paused) {
         this.paused = false;
         if(this.stoped) {
             this.sound.loadSound(this.track, true);
         }
         this.sound.start(this.position/1000, 1);         
         this.stoped = false;
      } else {
         this.position = this.sound.getPosition();
         this.sound.stop();         
         this.paused = true;
         this.onPause();
      }
   }

   Player.prototype.stop = function() {
       if (! this.paused) {
         //fade out
         for (var i=this.sound.getVolume()-1; i>=0; i--) {        
               this.sound.setVolume(i);
               pause(1);
         }                       
       }
       this.paused = true;
       this.stoped = true;
       this.position = 0;
       this.duration = 0;
              
       this.sound.start(this.duration/1000, 1);       
       this.sound.stop();         
   }   
   
  
   Player.prototype.loadTrack = function(track) {
      this.track = track;
   }        

var player;

// -----------------------------------------------------------------------------------
//
// Lightbox Class Declaration
// - initialize()
// - start()
// - changeImage()
// - resizeImageContainer()
// - showImage()
// - updateDetails()
// - updateNav()
// - 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. Loops through anchor tags looking for 
   // 'lightbox' references and applies onclick events to appropriate links. The 2nd section of
   // the function inserts html at the bottom of the page which is used to display the shadow 
   // overlay and the image container.
   //
   initialize: function() {   
      this.dimmingOut = false;
      
      if (!document.getElementsByTagName){ return; }
      var anchors = document.getElementsByTagName('a');

      // 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;}
         }
      }

      // The rest of this 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() {         
         if (!closeWindow) {
             myLightbox.end();    
         }
         return false; 
      }
      objBody.appendChild(objOverlay);
      

      var objLightbox = document.createElement("div");
      objLightbox.setAttribute('id','lightbox');
      objLightbox.style.display = 'none';
      objBody.appendChild(objLightbox);

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

      var objImageContainer = document.createElement("div");
      objImageContainer.setAttribute('id','imageContainer');
      objOuterImageContainer.appendChild(objImageContainer);

      objLightboxImage = document.createElement("img");
      objLightboxImage.setAttribute('id','lightboxImage');
      objLightboxImage.setAttribute('width',''); //needed for proper resizing
      objLightboxImage.setAttribute('height',''); //needed for proper resizing
      objImageContainer.appendChild(objLightboxImage);
   
      var objHoverNav = document.createElement("div");
      objHoverNav.setAttribute('id','hoverNav');
      objImageContainer.appendChild(objHoverNav);
   
      var objPrevLink = document.createElement("a");
      objPrevLink.setAttribute('id','prevLink');
      objPrevLink.setAttribute('href','#');
      objPrevLink.setAttribute('onFocus', 'if (this.blur) this.blur()');
      objHoverNav.appendChild(objPrevLink);
      
      var objNextLink = document.createElement("a");
      objNextLink.setAttribute('id','nextLink');
      objNextLink.setAttribute('href','#');
      objNextLink.setAttribute('onFocus', 'if (this.blur) this.blur()');
      objHoverNav.appendChild(objNextLink);

      //Loading 
      var objLoading = document.createElement("div");
      objLoading.setAttribute('id','loading');
      objImageContainer.appendChild(objLoading);
   
      var objLoadingLink = document.createElement("a");
      objLoadingLink.setAttribute('id','loadingLink');
      objLoadingLink.setAttribute('href','#');
      objLoadingLink.setAttribute('onFocus', 'if (this.blur) this.blur()');
      objLoadingLink.onclick = function() { 
         myLightbox.end(); 
         if (closeWindow) window.close(); 
         return false; 
      }
      objLoading.appendChild(objLoadingLink);
   
      var objLoadingImage = document.createElement("img");
      objLoadingImage.setAttribute('src', fileLoadingImage);
      objLoadingLink.appendChild(objLoadingImage); 
      
      //Replay
      var objReplay = document.createElement("div");
      objReplay.setAttribute('id','replay');
      objImageContainer.appendChild(objReplay);
   
      var objReplayLink = document.createElement("a");
      objReplayLink.setAttribute('id','replayLink');
      objReplayLink.setAttribute('href','#');
      objReplayLink.setAttribute('onFocus', 'if (this.blur) this.blur()');
      objReplayLink.onclick = function() { myLightbox.toggleSlideShow(); return false; }  
      objReplay.appendChild(objReplayLink);
   
      var objReplayImage = document.createElement("img");
      objReplayImage.onpropertychange = function() { propertyChanged(); return false; };
      objReplayImage.setAttribute('src', replayImage);
      objReplayLink.appendChild(objReplayImage);   
      objReplayImage.setAttribute('src', replayImage);
      Element.hide('replay');
      
      //Spacer
      var objSpacer = document.createElement("div");
      objSpacer.setAttribute('id', 'spacer');
      objSpacer.className = 'spacer';
      objLightbox.appendChild(objSpacer);

      //Bottom bar - ImageDataContainer
      objImageDataContainer = document.createElement("div");
      objImageDataContainer.setAttribute('id','imageDataContainer');
      objImageDataContainer.className = 'clearfix';
         
      objImageDataContainer.onmouseover = function(ev) {
         if (ev == undefined) {
            ev=event;
         }
         if (checkMouseEnter(this, ev)) {
            myLightbox.lightUpNavigationBar();
         }
         
         return false;
      }
      objImageDataContainer.onmouseout = function(ev) {     
         if (ev == undefined) {
            ev=event;
         }        
         if (checkMouseLeave(this, ev)) {
            myLightbox.dimDownNavigationBar();
         }
                  
         return false;
      }
      
      objLightbox.appendChild(objImageDataContainer);

      var objImageData = document.createElement("div");
      objImageData.setAttribute('id','imageData');
      objImageDataContainer.appendChild(objImageData);
   
      var objImageDetails = document.createElement("div");
      objImageDetails.setAttribute('id','imageDetails');
      objImageData.appendChild(objImageDetails);
   
      var objCaption = document.createElement("span");
      objCaption.setAttribute('id','caption');
      objImageDetails.appendChild(objCaption);
   
      var objNumberDisplay = document.createElement("span");
      objNumberDisplay.setAttribute('id','numberDisplay');
      objImageDetails.appendChild(objNumberDisplay);

      //Bottom Navigation -------------------------------------------------------------   
      var objBottomNav = document.createElement("div");
      objBottomNav.setAttribute('id','bottomNav');
      objImageData.appendChild(objBottomNav);

      //Close link
      var objBottomNavCloseLink = document.createElement("a");
      objBottomNavCloseLink.setAttribute('id','bottomNavClose');
      objBottomNavCloseLink.setAttribute('href','#');
      objBottomNavCloseLink.setAttribute('onFocus', 'if (this.blur) this.blur()');
      objBottomNavCloseLink.onclick = function() { 
         myLightbox.end(); 
         if (closeWindow) window.close();
         return false; 
      }
      objBottomNav.appendChild(objBottomNavCloseLink);

      //Close image
      objBottomNavCloseImage = document.createElement("img");
      objBottomNavCloseImage.setAttribute('id', 'closeButton');
      objBottomNavCloseImage.setAttribute('alt', "Close");
      objBottomNavCloseImage.onpropertychange = function() { propertyChanged(); return false; };
      objBottomNavCloseImage.setAttribute('src', fileBottomNavCloseImage);
      objBottomNavCloseLink.appendChild(objBottomNavCloseImage);
      //objBottomNavCloseImage.setAttribute('src', fileBottomNavCloseImage);

      //Slideshow link
      var objSlideShowLink = document.createElement("a");
      objSlideShowLink.setAttribute('id','slideshowLink');
      objSlideShowLink.setAttribute('href','#');
      objSlideShowLink.setAttribute('onFocus', 'if (this.blur) this.blur()');
      objSlideShowLink.onclick = function() { myLightbox.toggleSlideShow(); return false; }
      objBottomNav.appendChild(objSlideShowLink);

      //Slidehow Image
      objSlideShowImage = document.createElement("img");
      objSlideShowImage.setAttribute('id', 'playButton');
      objSlideShowImage.setAttribute('alt', "Start/Stop");
      objSlideShowImage.setAttribute('src', SlideShowStartImage);
      objSlideShowImage.onpropertychange = function() { propertyChanged(); return false; };
      objSlideShowLink.appendChild(objSlideShowImage);
      //objSlideShowImage.setAttribute('src', SlideShowStartImage);

      //Speaker link
      var objSpeakerLink = document.createElement("a");
      objSpeakerLink.setAttribute('id','speakerLink');
      objSpeakerLink.setAttribute('href','#');
      objSpeakerLink.setAttribute('onFocus', 'if (this.blur) this.blur()');
      objSpeakerLink.onclick = function() { player.toggleVolume(); return false; }
      objBottomNav.appendChild(objSpeakerLink);
         
      //Speaker Image
      objSpeakerImage = document.createElement("img");
      objSpeakerImage.setAttribute('id', 'speaker');     
      objSpeakerImage.setAttribute('alt', "Music On/Off");        
      objSpeakerImage.setAttribute('src', MusicOffImage);   
      objSpeakerImage.onpropertychange = function() { propertyChanged(); return false; };
      objSpeakerLink.appendChild(objSpeakerImage);    
         
      //Music player
      var objFlashPlayer = document.createElement("div");
      objFlashPlayer.setAttribute('id','__sound_flash__');
      objOverlay.appendChild(objFlashPlayer);
         

   },
   
   lightUpNavigationBar: function() {
      if (!this.dimmingOut) {
           new Effect.Parallel(
            [ 
            new Effect.Appear('imageDataContainer', 
            { duration: 0.25, from: imageDataContainerOpacity, to: 1.0 }) 
            ], { duration: 0.25 } );
      } else {
         this.dimmingOut = false;
      }
   },
   
   dimDownNavigationBar: function() {              
      this.dimmingOut = true;
      setTimeout(function() {          
         if (this.dimmingOut) { 
            //this.dimmingOut = false; 
         
              new Effect.Parallel(
               [ new Effect.Appear('imageDataContainer', 
                  { duration: 0.25, from: 1.0, to: imageDataContainerOpacity,
                     afterFinish: function(){ myLightbox.dimmingOut = false; } 
                  }) 
               ], { duration: 0.25 } );
         }  
      }.bind(this), 
         2000 //<-- dimming delay
      );                   
   },
   
   //
   // start()
   // Display overlay and lightbox. If image is part of a set, add siblings to imageArray.
   //
   start: function(imageLink) {  
      player = new Player();
      
      slideshowMusic = null;
      firstTime = 1;
      
      saveSlideshow = slideshow;
      saveForeverLoop = foreverLoop;
      saveLoopInterval = loopInterval;

      saveSlideShowWidth = slideShowWidth;
      saveSlideShowHeight = slideShowHeight;
      
      saveLoopMusic = loopMusic;
      saveNavigationBarWidth = navigationBarWidth;

      hideSelectBoxes();

      // stretch overlay to fill page and fade in
      var arrayPageSize = getPageSize();
      Element.setHeight('overlay', arrayPageSize[1]);
      new Effect.Appear('overlay', { duration: 0.2, from: 0.0, to: 0.8 });

      imageArray = [];
      imageNum = 0;     

      if (!document.getElementsByTagName){ return; }
      var anchors = document.getElementsByTagName('a');

      // 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')));       
      } 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'))){
               imageArray.push(new Array(anchor.getAttribute('href'), anchor.getAttribute('title')));
               
               if (imageArray.length == 1) {
                 slideshowMusic = anchor.getAttribute('music');
                 if (slideshowMusic == null) {                 
                    //Element.hide('speakerLink');
                 } else { 
                    //Element.show('speakerLink');                   
                    player.loadTrack(slideshowMusic);                                           
                 }

                 var startSlideshow = anchor.getAttribute('startslideshow');
                 if (startSlideshow != null) {
                  if (startSlideshow == "false") slideshow = 0;
                 }               

                 var forever = anchor.getAttribute('forever');
                 if (forever != null) {
                  if (forever == "true") foreverLoop = 1; else foreverLoop = 0;
                 }               
                 
                 var foreverMusic = anchor.getAttribute('loopMusic');
                 if (foreverMusic != null) {
                  if (foreverMusic == "true") loopMusic = true; else loopMusic = false;
                 }               
                 
                 if (foreverLoop == 1) { loopMusic = true;  }
                 
                 var slideDuration = anchor.getAttribute('slideDuration');
                 if (slideDuration != null) {
                  loopInterval = slideDuration * 1000;
                 }               
                 var width = anchor.getAttribute('slideshowwidth');
                 if (width != null) {
                  slideShowWidth = width *1;
                 }
                 var height = anchor.getAttribute('slideshowheight');
                 if (height != null) {
                  slideShowHeight = height *1;
                 }
                 
                 var barWidth = anchor.getAttribute('navbarWidth');
                 if (barWidth != null) {
                  navigationBarWidth = barWidth *1;
                 }                 
               }
               
            }
         }

         imageArray.removeDuplicates();
         while(imageArray[imageNum][0] != imageLink.getAttribute('href')) { imageNum++;}  
      }

      this.changeImageByTimer(imageNum);        
   },
   
   showLightBox: function() {
          // calculate top offset for the lightbox and display 
           var arrayPageSize = getPageSize();
          var arrayPageScroll = getPageScroll();
          var lightboxTop = arrayPageScroll[1] + (arrayPageSize[3] / 15);
                  
          Element.setTop('lightbox', lightboxTop+10);
          Element.show('lightbox');       
   },

   // changeImageByTimer()
   // changes image using timer, which prevents the loading gif from spinning 
   // until the entire page is loaded
      changeImageByTimer: function(imageNum) {
            activeImage = imageNum;
            this.imageTimer = setTimeout(function() {
            this.showLightBox();
            this.changeImage(activeImage);
         }.bind(this), 10);
       },
    
   //
   // 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
      Element.show('loading');
      Element.hide('replay');
      Element.hide('lightboxImage');
      Element.hide('hoverNav');
      Element.hide('prevLink');
      Element.hide('nextLink');
      

      if (firstTime == 1) {      
        Element.hide('imageDataContainer');       
        Element.hide('bottomNav');
        Element.hide('numberDisplay');
        Element.hide('speakerLink');
        Element.hide('slideshowLink');    
      }
         
      imgPreloader = new Image();
      
      // once image is preloaded, resize image container
      imgPreloader.onload=function(){
         Element.setSrc('lightboxImage', imageArray[activeImage][0]);

         objLightboxImage.setAttribute('width', imgPreloader.width);
         objLightboxImage.setAttribute('height', imgPreloader.height);

         if ((imageArray.length > 1) && (slideShowWidth != -1 || slideShowHeight != -1)) {
            //<---
            if (slideShowWidth == -1 && slideShowHeight != -1) {
               myLightbox.resizeImageContainer(imgPreloader.width, slideShowHeight);
            } else {
            if (slideShowHeight == -1 && slideShowWidth != -1) {
               myLightbox.resizeImageContainer(slideShowWidth, imgPreloader.height);
            } else {
            //<----
                  //------------
                  if (  (slideShowWidth >= imgPreloader.width) &&          
                       (slideShowHeight >= imgPreloader.height)
                     ) 
                   {                            
                     myLightbox.resizeImageContainer(slideShowWidth, slideShowHeight);
                  } else {
                     myLightbox.resizeImageAndContainer(imgPreloader.width, imgPreloader.height);
                  }          
                  //------------
            }//else
            }//else
         } else {
           myLightbox.resizeImageAndContainer(imgPreloader.width, imgPreloader.height);
         }
      }
      imgPreloader.src = imageArray[activeImage][0];
   },

   resizeImageAndContainer: function(imgWidth, imgHeight) {    
      if(resize == 1) {//resize mod by magarnicle
         useableWidth = 0.9; // 90% of the window
         useableHeight = 0.8; // 80% of the window
         
         var arrayPageSize = getPageSize();
         
         windowWidth = arrayPageSize[2];
         windowHeight = arrayPageSize[3];
         
         var w = windowWidth * useableWidth;
         var h = windowHeight * useableHeight;
         
         var d = Element.getHeight('spacer');
         //adjust the height of the window to fit the navigation bar in
         if (d) {  
            //w = w - (d+d);
            h = h - (d+d);
         }
         
         scaleX = 1; scaleY = 1;
         
         if ( imgWidth > w ) scaleX = (w) / imgWidth;
         if ( imgHeight > h ) scaleY = (h) / imgHeight;
         
         scale = Math.min( scaleX, scaleY );
         
         imgWidth *= scale;
         imgHeight *= scale;

         objLightboxImage.setAttribute('width', imgWidth);
         objLightboxImage.setAttribute('height', imgHeight);
      }
      this.resizeImageContainer(imgWidth, imgHeight);
   },

   //
   // resizeImageContainer()
   //
   resizeImageContainer: function( imgWidth, imgHeight) {
      imgWidth = imgWidth + 1;
      // get current height and width
      this.wCur = Element.getWidth('outerImageContainer');
      this.hCur = Element.getHeight('outerImageContainer');

      // scalars based on change from old to new
      this.xScale = ((imgWidth  + (borderSize * 2)) / this.wCur) * 100;
      this.yScale = ((imgHeight  + (borderSize * 2)) / this.hCur) * 100;

      // calculate size difference between new and old image, and resize if necessary
      wDiff = (this.wCur - borderSize * 2) - imgWidth;
      hDiff = (this.hCur - borderSize * 2) - imgHeight;

      this.slideDownImageDataContainer = true;

      if(!( hDiff == 0)){ new Effect.Scale('outerImageContainer', this.yScale, {scaleX: false, duration: resizeDuration, queue: 'front'}); }
      if(!( wDiff == 0)){ 
         if (navigationBarWidth == -1) { Element.hide('imageDataContainer');  }
         new Effect.Scale('outerImageContainer', this.xScale, 
            {scaleY: false, delay: resizeDuration, duration: resizeDuration }); 
      } else {
         this.slideDownImageDataContainer = false;
      }

      // 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);    
      if (navigationBarWidth == -1) {
         Element.setWidth( 'imageDataContainer', imgWidth + (borderSize * 2));
      } else {
         Element.setWidth( 'imageDataContainer', navigationBarWidth + (borderSize * 2));  
         this.slideDownImageDataContainer = false;    
      }

      this.showImage();
   },


   //
   // showImage()
   // Display image and begin preloading neighbors.
   //
   showImage: function(){
      Element.hide('loading');
      new Effect.Appear('lightboxImage', { duration: 0.5, queue: 'end', afterFinish: function(){ myLightbox.updateDetails(); } });
      this.preloadNeighborImages();
   },

   //
   // updateDetails()
   // Display caption, image number, and bottom nav.
   //
   updateDetails: function() {
      Element.show('bottomNav');
      
      if (firstTime == 1) {
         objSpeakerImage.setAttribute('src', MusicOffImage);
         objSlideShowImage.setAttribute('src', SlideShowStartImage);
         objBottomNavCloseImage.setAttribute('src', fileBottomNavCloseImage);
      }
            
      Element.show('caption');      
      if (imageArray[activeImage][1] != '' && imageArray[activeImage][1] != null) {
         Element.setInnerHTML( 'caption', imageArray[activeImage][1]);
      } else {
         Element.setInnerHTML( 'caption', "&nbsp;");
      }
            
      // if image is part of set display 'Image x of x' 
      if(imageArray.length > 1){
         Element.show('numberDisplay');
         Element.setInnerHTML( 'numberDisplay', "" + eval(activeImage + 1) + " of " + imageArray.length);
      }

      if (firstTime == 1 || this.slideDownImageDataContainer) {
        new Effect.Parallel(
         [ new Effect.SlideDown( 'imageDataContainer', { sync: true, duration: resizeDuration + 0.25, from: 0.0, to: 1 }), 
           new Effect.Appear('imageDataContainer', { sync: true, duration: 1.0, from: 0.0, to: imageDataContainerOpacity }) ], 
         { duration: 0.65, afterFinish: function() { myLightbox.updateNav();} } 
        );                   
      } else {      
//      new Effect.Parallel(
//       [ new Effect.Appear('imageDataContainer', { sync: true, duration: 1.0 }) ], 
//       { duration: 0.65, afterFinish: function() { myLightbox.updateNav();} } 
//      );
        myLightbox.updateNav();
      }


         if (imageArray.length > 1) {                           
            //Element.show('speakerLink');
            Element.show('slideshowLink');
         }else {
            //Element.hide('speakerLink');
            Element.hide('slideshowLink');
         }

         if (slideshow == 1 && imageArray.length > 1) {
            this.startSlideShow();
         } 

   },

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

      Element.show('hoverNav');           

      // if not first image in set, display prev image button
      if(activeImage != 0){
         Element.show('prevLink');
         document.getElementById('prevLink').onclick = function() {
            if (slideshow == 1) keyPressed = true;
            myLightbox.changeImage(activeImage - 1); return false;
         }
      }

      // if not last image in set, display next image button
      if(activeImage != (imageArray.length - 1)){
         Element.show('nextLink');
         document.getElementById('nextLink').onclick = function() {
            if (slideshow == 1) keyPressed = true;
            myLightbox.changeImage(activeImage + 1); return false;
         }
      }
      
      this.enableKeyboardNav();

      if (firstTime == 1) {
        firstTime = 0;
        //if (imageArray.length > 1 && slideshow == 1) 
        this.showSpeaker();
        if (slideshow == 1) this.playMusic(); 
      }
   },

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

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

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

      key = String.fromCharCode(keycode).toLowerCase();

      if((key == 'x') || (key == 'o') || (key == 'c')){  // close lightbox
         myLightbox.end();
      } else if((keycode == 188) || (key == 'p')){ // display previous image
         if(activeImage != 0){
            if (slideshow == 1) keyPressed = true;
            myLightbox.disableKeyboardNav();                   
            myLightbox.changeImage(activeImage - 1);
         }
      } else if((keycode == 190) || (key == 'n')){ // display next image
         if(activeImage != (imageArray.length - 1)){
            if (slideshow == 1) keyPressed = true;
            myLightbox.disableKeyboardNav();          
            myLightbox.changeImage(activeImage + 1);
         }
      }


   },

   //
   // 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];
      }
   
   },

   //showSpeaker
   showSpeaker: function() {
      if (slideshowMusic != null) {
         Element.show('speakerLink');        
      } else {
        Element.hide('speakerLink');
      }
   },
   
   //playMusic
   playMusic: function() {
      if (slideshowMusic != null) {
         objSpeakerImage.setAttribute('src', MusicOnImage);
         player.play();
      }
   },

   //stopMusic
   stopMusic: function() {
     if (slideshowMusic != null) {
        objSpeakerImage.setAttribute('src', MusicOffImage);
        if (player.paused) {
           player.stop();
        } else {
            player.play();
        }
      }
   },

   // Slideshow Functions
   //
   // toggleSlideShow()
   // startSlideShow()
   // stopSlideShow()
   
   // toggleSlideShow()
   toggleSlideShow: function() {
      if(slideshow == 1) this.stopSlideShow();
      else {
         this.playMusic();       
         if(activeImage == (imageArray.length-1)) {
         slideshow = 1;
         this.changeImage(0);       
         } else {
            this.startSlideShow();
         }
      }
   },
   
   // startSlideShow()
   startSlideShow: function() {
      slideshow = 1;          
      objSlideShowImage.setAttribute('src', SlideShowStopImage);
      this.slideShowTimer = setTimeout(function() {
         if (keyPressed) {
            keyPressed = false;
            return;
         }
         if(activeImage < (imageArray.length-1)) {
            this.changeImage(activeImage + 1);
         }
         else {
            if(foreverLoop) { 
               this.changeImage(0);
            }
            else {
               //this.end();
               //if (closeWindow) window.close();
               
               //this.stopSlideShow();
               
               //---
               slideshow = 0;
               
               if(this.slideShowTimer) {
                  clearTimeout(this.slideShowTimer);
                  this.slideShowTimer = null;         
               }
               //---
               
                     
               player.clearCallback();
      
               this.disableKeyboardNav();             
               Element.hide('hoverNav');
               Element.hide('prevLink');
               Element.hide('nextLink');
               
               Element.setInnerHTML( 'numberDisplay', '');
               
               this.fadeoutTimer = setInterval(function() {
                  player.sound.setVolume(player.sound.getVolume()-1);
               }.bind(this), 30);
               
               new Effect.Appear('lightboxImage', { duration: 3, from: 1, to: 0, 
                              afterFinish: function(){                                 
                                 new Effect.Appear('replay', { duration: 0.2, from: 0, to: 1}); 
                                 objSlideShowImage.setAttribute('src', SlideShowStartImage);
                                 clearInterval(myLightbox.fadeoutTimer);
                                 player.paused = true; //this will cause music to stop
                                 myLightbox.stopMusic();
                                 
                                 }} );
            }
        }   
      }.bind(this), loopInterval);
   },

   // stopSlideShow()
   stopSlideShow: function() {
      slideshow = 0;
      objSlideShowImage.setAttribute('src', SlideShowStartImage);
       
      this.stopMusic();    
      if(this.slideShowTimer) {
         clearTimeout(this.slideShowTimer);
         this.slideShowTimer = null;         
      }
   },

   //
   // end()
   //
   end: function() {    
      player.paused = true; //this will cause music to stop
      
      this.stopSlideShow();
      
      player.clearCallback();
      clearInterval(myLightbox.fadeoutTimer);
      
      this.disableKeyboardNav();
      
      Element.hide('bottomNav');
      Element.hide('lightbox');
      
      new Effect.Fade('overlay', { duration: 0.2});
      showSelectBoxes();

      slideshow = saveSlideshow;
      foreverLoop = saveForeverLoop;
      loopInterval = saveLoopInterval;

      slideShowWidth = saveSlideShowWidth;
      slideShowHeight = saveSlideShowHeight;
      navigationBarWidth = saveNavigationBarWidth;
      
      loopMusic = saveLoopMusic;
   }
}

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

//this is three functions to support mouseover and mouseout events.
//It allows checking if mouse is inside the block ignoring children's blocks.
function containsDOM (container, containee) {
  var isParent = false;
  do {
    if ((isParent = container == containee))
      break;
    containee = containee.parentNode;
  }
  while (containee != null);
  return isParent;
}

function checkMouseEnter (element, evt) {
  if (element.contains && evt.fromElement) {
    return !element.contains(evt.fromElement);
  }
  else if (evt.relatedTarget) {
    return !containsDOM(element, evt.relatedTarget);
  }
}

function checkMouseLeave (element, evt) {
  if (element.contains && evt.toElement) {
    return !element.contains(evt.toElement);
  }
  else if (evt.relatedTarget) {
    return !containsDOM(element, evt.relatedTarget);
  }
}

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

   var yScroll;

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

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

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

//
// getPageSize()
// Returns array with page width, height and window width, height
// Core code from - quirksmode.org
// Edit for Firefox by pHaez
//
function getPageSize(){
   
   var xScroll, yScroll;
   
   if (window.innerHeight && window.scrollMaxY) {  
      xScroll = document.body.scrollWidth;
      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;
   if (self.innerHeight) { // all except Explorer
      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;
   }

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


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

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

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

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

//
// pause(numberMillis)
// Pauses code execution for specified time. Uses busy code, not good.
// Code from http://www.faqts.com/knowledge_base/view.phtml/aid/1602
//
function pause(numberMillis) {
   var now = new Date();
   var exitTime = now.getTime() + numberMillis;
   while (true) {
      now = new Date();
      if (now.getTime() > exitTime)
         return;
   }
}

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



function initLightbox() { myLightbox = new Lightbox();}
//Event.observe(window, 'load', initLightbox, false);



//the code below suppose to help starting slideshow before a page is totaly loaded
function init() {
    // quit if this function has already been called
    if (arguments.callee.done) return;

    // flag this function so we don't do the same thing twice
    arguments.callee.done = true;

    // kill the timer
    if (_timer) {
        clearInterval(_timer);
        _timer = null;
    }

    // do onload stuff
    initLightbox();

};

 

/* for Mozilla */

if (document.addEventListener) {
    document.addEventListener("DOMContentLoaded", init, false);

}

 

/* for Internet Explorer */
/*@cc_on @*/
/*@if (@_win32)
    document.write("<script id=__ie_onload defer src=javascript:void(0)></script>");
    var script = document.getElementById("__ie_onload");
    script.onreadystatechange = function() {
        if (this.readyState == "complete") {
            init(); // call the onload handler
        }
    };
/*@end @*/

 

/* for Safari */
if (/WebKit/i.test(navigator.userAgent)) { // sniff
    var _timer = setInterval(function() {
        if (/loaded|complete/.test(document.readyState)) {
            init(); // call the onload handler
        }
    }, 10);
}

 

/* for other browsers */
window.onload = init;