// -----------------------------------------------------------------------------------
//
// 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              = 520; // -1 - size slideshow window based on each image	-604-540
var slideShowHeight             = 385; // -1 - size slideshow window based on each image-454-385
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 					= "lightboxEx/";//"http://ahavriluk.home.comcast.net/lightboxEx/"; //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   = 1;



var resize 						= 1;	// 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 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;
        }
        objHoverNav.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);

        /********************************************************/
        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 objNewline = document.createElement("div");
        objNewline.setAttribute('id', 'clearboth');
        objImageDetails.appendChild(objNewline);
        
        var objInnhold = document.createElement("span");
        objInnhold.setAttribute('id', 'innhold');
        objImageDetails.appendChild(objInnhold);
        
        var objNewline = document.createElement("div");
        objNewline.setAttribute('id', 'clearboth');
        objImageDetails.appendChild(objNewline);
        /*****************************************/
        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'),imageLink.getAttribute('innhold')));
        } 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'), anchor.getAttribute('innhold')));

                    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;");
        }

        /****************************************************/
        Element.show('innhold');
        if (imageArray[activeImage][2] != '' && imageArray[activeImage][2] != null) {
            Element.setInnerHTML('innhold', imageArray[activeImage][2]);
        } else {
            Element.setInnerHTML('innhold', "&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;