// ---

/*

	JaS is developed by Robert Nyman, http://www.robertnyman.com

	For more information, please see http://www.robertnyman.com/jas

*/

var JaS = {

	// Customization parameters

	imagePath : "http://www.caymanbiodiversity.com/wp-content/themes/baplarge/pictures_birds/picturesmocking/",

	images : [
	
		["amockintro.jpg", "Mockingbirds, Thrashers, Thrushes", "Generally, medium-small, slender bodied birds."],	

	
		["mocking_graycatbird.jpg", "<a href=\"http://www.birds.cornell.edu/AllAboutBirds/BirdGuide/Gray_Catbird.html\" target=\"_blank\"><img src=\"http://www.caymanbiodiversity.com/wp-content/themes/baplarge/logocornell.gif\" border=\"0\" align=\"right\" onMouseover=\"this.src='http://www.caymanbiodiversity.com/wp-content/themes/baplarge/logoclick.gif'\"  onMouseout=\"this.src='http://www.caymanbiodiversity.com/wp-content/themes/baplarge/logocornell.gif'\"></a>Gray Catbird", "<i>Dumetella carolinensis	</i><br>Length 23cm (9\"). Fairly common winter visitor to the Cayman Islands, especially Grand Cayman. Prefers woodland, shrubland, mangrove and logwood. Seldom emerges into the open, preferring the cover of dense vegetation. Takes its name from its unusual call: a rather cat-like m-e-a."],
		
		["mocking_northernmockingbird.jpg", "<a href=\"http://www.birds.cornell.edu/AllAboutBirds/BirdGuide/Northern_Mockingbird.html\" target=\"_blank\"><img src=\"http://www.caymanbiodiversity.com/wp-content/themes/baplarge/logocornell.gif\" border=\"0\" align=\"right\" onMouseover=\"this.src='http://www.caymanbiodiversity.com/wp-content/themes/baplarge/logoclick.gif'\"  onMouseout=\"this.src='http://www.caymanbiodiversity.com/wp-content/themes/baplarge/logocornell.gif'\"></a>Northern Mockingbird (Nightingale) ", "<i>Mimus polyglottos	</i><br>Length 23-28cm (9-11\"). Very common breeding resident in the Cayman Islands. Prefers dry shrubland, but also common in disturbed and urban habitats. Sings a repeated and elaborate song, often incorporating the songs of other birds - (hence \"polyglot\" - a person who speaks many languages). Swooping flight. On landing, Mockingbirds have a habit of holding their tails vertically."],
		
		["thrushes_grandcaymanthrush.jpg", "Grand Cayman Thrush (Old Truss, Thrush)", "<i>Turdus ravidus </i><br>Length 27cm (10.5\"). A species endemic to Grand Cayman and found and nowhere else in the world. Common, when first described in 1886, it was already very rare by the turn of the century. The last reported sighting was in 1938, in the dense forest of East End. Intensive searches in 1965, 1966 and 1967 failed to produce any sightings. The Grand Cayman Thrush was declared extinct. Habitat destruction through deforestation and the compounding effects of hurricane damage are regarded as being the primary causes of the loss of this unique bird. Active conservation is essential if our local birdlife, and the habitat on which it depends, are to be preserved for the future. Our choice is simple. We can take action now -  or we can wait until the sad story of the Grand Cayman Thrush is repeated. The Cayman Islands currently supports 17 endemic subspecies of birds. When an endemic species or subspecies is lost, it is lost to the world. Their preservation is the duty of the people of the Cayman Islands - our national responsibility to global biodiversity."],
		
		["thrushes_greycheekedthrush.jpg", "<a href=\"http://www.birds.cornell.edu/AllAboutBirds/BirdGuide/Gray-cheeked_Thrush.html\" target=\"_blank\"><img src=\"http://www.caymanbiodiversity.com/wp-content/themes/baplarge/logocornell.gif\" border=\"0\" align=\"right\" onMouseover=\"this.src='http://www.caymanbiodiversity.com/wp-content/themes/baplarge/logoclick.gif'\"  onMouseout=\"this.src='http://www.caymanbiodiversity.com/wp-content/themes/baplarge/logocornell.gif'\"></a>Gray-cheeked Thrush", "<i>Catharus minimus		</i><br>Length 16-20cm (6.25-8\"). Very rare passage migrant to the Cayman Islands, known only from a few records on Grand Cayman and Cayman Brac. Not to be confused with our more common Ovenbird."],
		
		["thrushes_redleggedthrush.jpg", "Red-legged Thrush  (Old Truss, Thrush) ", "<i>Turdus plumbeus	</i><br>Length 25-28cm (10-11\"). Common breeding resident of Cayman Brac. Our local subspecies, Turdus plumbeus coryi is endemic: found only on Cayman Brac and nowhere else in the world. Prefers coastal wood and shrubland, and bluff-top woodland. Also seen in urban areas. Occasionally seen on Grand Cayman and Little Cayman. Usually silent and shy, but becomes vocal and aggressive during the breeding season, March-September. "],
		
		["thrushes_swainsonsthrush.jpg", "<a href=\"http://www.birds.cornell.edu/AllAboutBirds/BirdGuide/Swainsons_Thrush.html\" target=\"_blank\"><img src=\"http://www.caymanbiodiversity.com/wp-content/themes/baplarge/logocornell.gif\" border=\"0\" align=\"right\" onMouseover=\"this.src='http://www.caymanbiodiversity.com/wp-content/themes/baplarge/logoclick.gif'\"  onMouseout=\"this.src='http://www.caymanbiodiversity.com/wp-content/themes/baplarge/logocornell.gif'\"></a>Swainson\'s Thrush ", "<i>Catharus ustulatus</i><br>Length 17.5cm (7\").Very uncommon passage migrant to the Cayman Islands, known from observations in Grand Cayman and Cayman Brac. Occasionally occurring in small flocks. Not to be confused with our more common Ovenbird."],
		
		["thrushes_veery.jpg", "<a href=\"http://www.birds.cornell.edu/AllAboutBirds/BirdGuide/Veery.html\" target=\"_blank\"><img src=\"http://www.caymanbiodiversity.com/wp-content/themes/baplarge/logocornell.gif\" border=\"0\" align=\"right\" onMouseover=\"this.src='http://www.caymanbiodiversity.com/wp-content/themes/baplarge/logoclick.gif'\"  onMouseout=\"this.src='http://www.caymanbiodiversity.com/wp-content/themes/baplarge/logocornell.gif'\"></a>Veery", "<i>Catharus fuscescens</i><br>Length 16-18cm (6.25-7\"). Very rare passage migrant to the Cayman Islands, known only from a few records on the three islands. Not to be confused with our more common Ovenbird, which has a strongly speckled chest."],
		
		["thrushes_woodthrush.jpg", "<a href=\"http://www.birds.cornell.edu/AllAboutBirds/BirdGuide/Wood_Thrush.html\" target=\"_blank\"><img src=\"http://www.caymanbiodiversity.com/wp-content/themes/baplarge/logocornell.gif\" border=\"0\" align=\"right\" onMouseover=\"this.src='http://www.caymanbiodiversity.com/wp-content/themes/baplarge/logoclick.gif'\"  onMouseout=\"this.src='http://www.caymanbiodiversity.com/wp-content/themes/baplarge/logocornell.gif'\"></a>Wood Thrush", "<i>Hylocichla mustelina	</i><br>Length 20cm (8\"). Rare passage migrant to Grand Cayman and Little Cayman. Not to be confused with our more common Ovenbird.<br><br>"]
		
		
				
	],

	fadeContainerId : "jas-container",

	imageContainerId : "jas-image",

	imageTextContainerId : "jas-image-text",

	previousLinkId : "previous-image",

	nextLinkId : "next-image",

	imageCounterId : "image-counter",

	startSlideShowId : "start-slideshow",

	stopSlideShowId : "stop-slideshow",	

	dimBackgroundOverlayId : "jas-dim-overlay",

	dimBackgroundId : "dim-background",

	noDimBackgroundId : "no-dim-background",

	thumbnailContainerId: "jas-thumbnails",

	tagsContainerId: "jas-tags",

	tagsSelectAllId: "jas-select-all-tags",

	useImageText : true,

	useThumbnails : true,

	allowDimmedBackground : true,

	automaticallyDimBackgroundWhenSlideShow : true,

	useTags : true,

	useKeyboardShortcuts : true,	

	useFadingIn : true,

	useFadingOut : true,

	useFadeWhenNotSlideshow : false,

	useFadeForSlideshow : true,

	useFadeAtInitialLoad : false,

	fadeIncrement : 0.1,	

	fadeInterval : 100, // Milliseconds	

	timeForSlideInSlideshow : 5000, // Milliseconds

	

	// JaS function parameters

	allImages : null,

	currentImages : null,

	fadeContainer : null,

	imageContainer : null,

	imageTextContainer : null,

	previousLink : null,

	nextLink : null,

	dimBackgroundOverlay : null,

	dimBackgroundLink : null,

	noDimBackgroundLink : null,

	dimmingActivated : false,

	imageCounter : null,

	startSlideShowLink : null,

	stopSlideShowLink : null,

	thumbnailContainer : null,

	thumbnailCollection : [],

	currentThumbnailSelected : null,

	tagsContainer : null,

	tagsSelectAll : null,

	tagsList : null,

	tags : [],

	tagsCheckboxes : [],

	selectAllTags : true,

	imageText : null,

	imageText : "",

	imageSource : "",

	imageIndex : 0,

	fadingIn : true,

	fadeLevel : 0,

	fadeEndLevel : 1,

	fadeTimer : null,

	hasOpacitySupport : false,

	useMSFilter : false,

	useMSCurrentStyle : false,

	slideshowIsSupported : false,

	slideshowIsPlaying : false,

	functionAfterFade : null,

	isInitialLoad : false,

	

	init : function (){

    	if($){

			this.fadeContainer = $(this.fadeContainerId);

			this.imageContainer = $(this.imageContainerId);

			this.slideshowIsSupported = this.fadeContainer && this.imageContainer;

			if(this.slideshowIsSupported){

				this.allImages = this.images;

				this.currentImages = this.images;

				if(this.useImageText){

					this.imageTextContainer = $(this.imageTextContainerId);

					if(!this.imageTextContainer){

						this.useImageText = false;

					}

				}

				this.hasOpacitySupport = typeof this.fadeContainer.style.filter != "undefined" || typeof this.fadeContainer.style.opacity != "undefined";

				this.useMSFilter = typeof this.fadeContainer.style.filter != "undefined";

				this.useMSCurrentStyle = typeof this.fadeContainer.currentStyle != "undefined";

				

				this.previousLink = $(this.previousLinkId);

				this.previousLink.onclick = JaS.previousLinkClick;

				this.nextLink = $(this.nextLinkId);

				this.nextLink.onclick = JaS.nextLinkClick;

				this.imageCounter = $(this.imageCounterId);

				this.startSlideShowLink = $(this.startSlideShowId);

				if(this.startSlideShowLink){

					this.startSlideShowLink.style.display = "inline";

				}

				this.startSlideShowLink.onclick = JaS.startSlideShowClick;

				this.stopSlideShowLink = $(this.stopSlideShowId);

				if(this.stopSlideShowLink){

					this.stopSlideShowLink.style.display = "none";

				}

				this.stopSlideShowLink.onclick = JaS.stopSlideshowClick;

				

				if(this.allowDimmedBackground){

					this.dimBackgroundOverlay = $(this.dimBackgroundOverlayId);

					this.dimBackgroundLink = $(this.dimBackgroundId);

					this.noDimBackgroundLink = $(this.noDimBackgroundId);

					if(this.dimBackgroundOverlay && this.dimBackgroundLink && this.noDimBackgroundLink){

						this.dimBackgroundLink.onclick = JaS.dimBackgroundClick;

						this.noDimBackgroundLink.onclick = JaS.noDimackgroundClick;

						this.noDimBackgroundLink.style.display = "none";

						this.dimmingActivated = true;

					}

				}

				

				if(this.useKeyboardShortcuts){

					document.onkeydown = JaS.documentKeyDown;

				}

				

				this.thumbnailContainer = $(this.thumbnailContainerId);

				if(this.useThumbnails && this.thumbnailContainer){

					this.createThumbnails();

				}

				

				this.tagsContainer = $(this.tagsContainerId);

				if(this.useTags && this.tagsContainer){

					this.tagsSelectAll = $(this.tagsSelectAllId);

					if(this.tagsSelectAll){

						this.tagsSelectAll.onclick = JaS.tagsSelectAllClick;

						this.createTagList();

					}

				}

				

				this.isInitialLoad = true;

				this.setImage();

				this.isInitialLoad = false;

			}

		}

	},

	

	previousLinkClick : function(oEvent){

		var oEvent = (typeof oEvent != "undefined")? oEvent : event;

		JaS.preventDefaultEventBehavior(oEvent);

		JaS.previousImage();

	},

	

	nextLinkClick : function(oEvent){

		var oEvent = (typeof oEvent != "undefined")? oEvent : event;

		JaS.preventDefaultEventBehavior(oEvent);

		JaS.nextImage();

	},

	

	startSlideShowClick : function(oEvent){

		var oEvent = (typeof oEvent != "undefined")? oEvent : event;

		JaS.preventDefaultEventBehavior(oEvent);

		JaS.startSlideshow();

	},

	

	stopSlideshowClick : function(oEvent){

		var oEvent = (typeof oEvent != "undefined")? oEvent : event;

		JaS.preventDefaultEventBehavior(oEvent);

		JaS.stopSlideshow();

	},

	

	dimBackgroundClick : function(oEvent){

		var oEvent = (typeof oEvent != "undefined")? oEvent : event;

		JaS.preventDefaultEventBehavior(oEvent);

		JaS.dimBackground();

	},

	

	documentKeyDown : function(oEvent){

		var oEvent = (typeof oEvent != "undefined")? oEvent : event;

		JaS.applyKeyboardNavigation(oEvent);

	},

	

	tagsSelectAllClick : function (oEvent){

		JaS.tagsSelectAll = this.checked;

		JaS.markAllTags();

	},

	

	noDimackgroundClick : function(oEvent){

		var oEvent = (typeof oEvent != "undefined")? oEvent : event;

		JaS.preventDefaultEventBehavior(oEvent);

		JaS.noDimBackground();

	},

	

	setImage : function (){

		if(this.currentImages.length > 0){

			this.imageContainer.style.visibility = "visible";

			this.imageSource = this.currentImages[this.imageIndex][0];

			//ahmad edit to render description

			if(typeof(this.currentImages[this.imageIndex][2]) == "undefined"){
                this.currentImages[this.imageIndex][2] = "";
            }

			this.imageText = "<b>" + this.currentImages[this.imageIndex][1] + "</b><br><br>" + this.currentImages[this.imageIndex][2];

			if(this.useFadingOut && (this.slideshowIsPlaying && this.useFadeForSlideshow) || (!this.slideshowIsPlaying && this.useFadeWhenNotSlideshow) && (this.useFadeAtInitialLoad && this.isInitialLoad || !this.isInitialLoad)){

				this.fadeOut();

			}

			else{

				this.displayImageCount();

				this.imageContainer.setAttribute("src", (this.imagePath + this.imageSource));

				this.setImageText();

				this.previousLink.style.visibility = (this.imageIndex > 0)? "visible" : "hidden";

				this.nextLink.style.visibility = (this.imageIndex < (this.currentImages.length - 1))? "visible" : "hidden";

				if((this.useFadeAtInitialLoad && this.isInitialLoad || !this.isInitialLoad) && ((this.slideshowIsPlaying && this.useFadeForSlideshow) || (!this.slideshowIsPlaying && this.useFadeWhenNotSlideshow))){

					this.fadeIn();

				}

			}

			if(this.useThumbnails){

				this.markCurrentThumbnail();

			}

		}

		else{

			this.imageSource = "";

			this.imageText = "";

			this.displayImageCount();

			this.imageContainer.style.visibility = "hidden";

			this.setImageText();

		}

	},

	

	displayImageCount : function (){

    	if(this.imageCounter){

			this.imageCounter.innerHTML = (((this.currentImages.length > 0)? this.imageIndex : -1) + 1) + " / " + this.currentImages.length;

		}

	},

	

	nextImage : function (){

		if(this.imageIndex < (this.currentImages.length - 1)){

			++this.imageIndex;

			this.setImage();

		}

		else if(this.slideshowIsPlaying){

			this.stopSlideshow();

			this.imageIndex = 0;

			this.setImage();

		}

	},

	

	previousImage : function (){

		if(this.imageIndex > 0){

			--this.imageIndex;

			this.setImage();

		}         

	},



	setImageText : function (){

    	if(this.useImageText && typeof this.imageText == "string"){

			this.imageTextContainer.innerHTML = this.imageText;

		}

	},

	

	setDimBackgroundSize : function(){

         var oDimBackground = this.dimBackgroundOverlay.style;

         var intWidth = document.body.offsetWidth;

         var intXScroll = (typeof window.pageXOffset != "undefined")? window.pageXOffset : document.body.scrollLeft;

         var intHeight = (typeof window.innerHeight != "undefined")? window.innerHeight : (document.documentElement)? document.documentElement.clientHeight : document.body.clientHeight;

         var intYScroll = (typeof window.window.pageYOffset != "undefined")? window.window.pageYOffset : (document.documentElement)? document.documentElement.scrollTop : document.documentElement.scrollTop;

         oDimBackground.width = intWidth + intXScroll + "px";

         oDimBackground.height = intHeight + intYScroll + "px";

	},

	

	dimBackground : function (){

         this.setDimBackgroundSize();

         this.dimBackgroundOverlay.style.display = "block";

		 this.noDimBackgroundLink.style.display = "inline";		

	},

	

	noDimBackground : function (fromStopSlideshow){

		this.dimBackgroundOverlay.style.display = "none";

		this.noDimBackgroundLink.style.display = "none";

		if(!fromStopSlideshow){

			this.stopSlideshow();

		}

	},

		

	startSlideshow : function (){

		if(this.currentImages.length > 0){

			this.startSlideShowLink.style.display = "none";

			this.stopSlideShowLink.style.display = "inline";

			this.slideshowIsPlaying = true;

			this.fadeTimer = setTimeout("JaS.nextImage()", JaS.timeForSlideInSlideshow);

			if(this.dimmingActivated  && this.automaticallyDimBackgroundWhenSlideShow){

				this.dimBackground();

			}

		}

	},

	

	stopSlideshow : function (){

		if(this.currentImages.length > 0){

			this.startSlideShowLink.style.display = "inline";

			this.stopSlideShowLink.style.display = "none";

			this.slideshowIsPlaying = false;

			this.setFadeParams(false, 1, 0);

			this.setFade();

			clearTimeout(this.fadeTimer);

			if(this.dimmingActivated && this.automaticallyDimBackgroundWhenSlideShow){

				this.noDimBackground(true);

			}

		}

	},

	

	fadeIn : function (){

		this.setFadeParams(true, 0, 1);

		this.functionAfterFade = null;

		this.fade();

		if(this.slideshowIsPlaying){

			this.functionAfterFade = "this.startSlideshow()";

		}

	},

	

	fadeOut : function (){

		this.setFadeParams(false, 1, 0);

		this.functionAfterFade = "this.fadeOutDone()";

		this.fade();

	},

	

	fadeOutDone : function (){

        this.displayImageCount();

		this.imageContainer.setAttribute("src", (this.imagePath + this.imageSource));

		this.setImageText();

		if(this.useFadingIn){

			this.fadeIn();

		}

		else{

			this.fadeLevel = 1;

			this.setFade();

		}

	},

	

	fade : function (){

		if((this.fadingIn && this.fadeLevel < this.fadeEndLevel) || !this.fadingIn && this.fadeLevel > this.fadeEndLevel){

			this.fadeLevel = (this.fadingIn)? this.fadeLevel + this.fadeIncrement : this.fadeLevel - this.fadeIncrement;

			// This line is b/c of a floating point bug in JavaScript

			this.fadeLevel = Math.round(this.fadeLevel * 10) / 10;

			this.setFade();

			this.fadeTimer = setTimeout("JaS.fade()", this.fadeInterval);

		}

		else{

			clearTimeout(this.fadeTimer);

			if(this.functionAfterFade){

				eval(this.functionAfterFade);

			}

		}

	},

	

	setFade : function (){

		if(this.useMSFilter){

			this.fadeContainer.style.filter = "progid:DXImageTransform.Microsoft.Alpha(opacity=" + (this.fadeLevel * 100) + ")";

		}

		else{

			this.fadeContainer.style.opacity = this.fadeLevel;

		}

	},

	

	setFadeParams : function (bFadingIn, intStartLevel, intEndLevel){

		this.fadingIn = bFadingIn;

		this.fadeLevel = intStartLevel;

		this.fadeEndLevel = intEndLevel;

	},

	

	createThumbnails : function (){

		this.thumbnailContainer.innerHTML = "";

		this.thumbnailCollection = [];

    	var oThumbnailsList = document.createElement("ul");

		var oListItem;

		var oThumbnail;

		var oCurrentImage;

		for(var i=0; i<this.currentImages.length; i++){

        	oCurrentImage = this.currentImages[i];

			oListItem = document.createElement("li");

			oThumbnail = document.createElement("img");

			oThumbnail.setAttribute("id", ("jas-thumbnail-" + i));

			oThumbnail.setAttribute("src", (this.imagePath + oCurrentImage[0]));

			oThumbnail.setAttribute("alt", oCurrentImage[1]);

			oThumbnail.setAttribute("title", oCurrentImage[1]);

			oThumbnail.onclick = JaS.thumbnailClick;

			this.thumbnailCollection.push(oThumbnail);

			oListItem.appendChild(oThumbnail);

			oThumbnailsList.appendChild(oListItem);			

        }

		this.thumbnailContainer.appendChild(oThumbnailsList);

		if(this.thumbnailCollection.length > 0){

			this.markCurrentThumbnail();

		}

		if(this.slideshowIsPlaying){

			this.stopSlideshow();

		}

	},

	

	thumbnailClick : function (oEvent){

		JaS.imageIndex = parseInt(this.getAttribute("id").replace(/\D*(\d+)$/, "$1"), 10);

		JaS.setImage();

	},

	

	markCurrentThumbnail : function (){

		if(this.currentThumbnailSelected){

	        this.currentThumbnailSelected.className = "";

			// Sometimes, in IE, the image loses its reference to its parent

			if(this.currentThumbnailSelected.parentNode){

				this.currentThumbnailSelected.parentNode.className = "";

			}

		}

		this.currentThumbnailSelected = this.thumbnailCollection[this.imageIndex];

		this.currentThumbnailSelected.className = "selected";

		this.currentThumbnailSelected.parentNode.className = "selected-parent";

	},

	

	createTagList : function (){

		var strCurrentTag;

		var arrCurrentTag;

		var oRegExp;

		for(var i=0; i<this.images.length; i++){

			arrCurrentTag = this.images[i][2].replace(/\s*(,)\s*/,  "$1").split(",");

			for(var j=0; j<arrCurrentTag.length; j++){

            	strCurrentTag = arrCurrentTag[j];

				oRegExp = new RegExp(strCurrentTag, "i");

				if(this.tags.toString().search(oRegExp) == -1){

					this.tags.push(strCurrentTag);

				}

            }

        }

		this.tagsList = document.createElement("ul");

		var oListItem;

		var oTagCheckbox;

		var oLabel;

		for(var k=0; k<this.tags.length; k++){

			oTag = this.tags[k];

			oListItem = document.createElement("li");

			oTagCheckbox = document.createElement("input");

			oTagCheckbox.setAttribute("type", "checkbox");

			oTagCheckbox.setAttribute("id", ("jas-" + oTag));

			oTagCheckbox.setAttribute("value", oTag);

			oTagCheckbox.checked = true;

			oTagCheckbox.onclick = JaS.tagCheckboxClick;

			oLabel = document.createElement("label");

			oLabel.setAttribute("for", ("jas-" + oTag));

			oLabel.innerHTML = oTag;

			this.tagsCheckboxes.push(oTagCheckbox);

			oListItem.appendChild(oTagCheckbox);

			oListItem.appendChild(oLabel);

			this.tagsList.appendChild(oListItem);

		}

		this.tagsContainer.appendChild(this.tagsList);

		// This loop is necessary since IE can only mark checkboxes as checked after they've been added to the document

		for(var l=0; l<this.tagsCheckboxes.length; l++){

			this.tagsCheckboxes[l].checked = true;		

		}

	},

	

	tagCheckboxClick : function (oEvent){

		JaS.applyTagFilter();

	},

	

	applyTagFilter : function (){

		this.currentImages = [];

		var arrCurrentTags = [];

		var oCheckbox;

		for(var i=0; i<this.tagsCheckboxes.length; i++){

        	oCheckbox = this.tagsCheckboxes[i];

			if(oCheckbox.checked){

				arrCurrentTags.push(oCheckbox.value);

			}

        }

		var oRegExp;

		var oImage;

		for(var j=0; j<this.images.length; j++){

        	oImage = this.images[j];

			for(var k=0; k<arrCurrentTags.length; k++){

				oRegExp = new RegExp(arrCurrentTags[k], "i");

				if(oImage[2].search(oRegExp) != -1){

					this.currentImages.push(oImage);

					break;

				}

			}

        }

		

		if(this.useThumbnails){

			this.createThumbnails();

		}

		this.imageIndex = 0;

		this.setImage();

	},

	

	markAllTags : function (){

		for(var i=0; i<this.tagsCheckboxes.length; i++){

			this.tagsCheckboxes[i].checked = this.tagsSelectAll;

        }

		this.applyTagFilter();

	},

	

	closeSession : function (oEvent){

		JaS = null;

		delete JaS;

	},

	

	applyKeyboardNavigation : function (oEvent){

    	var intKeyCode = oEvent.keyCode;

    	if(!oEvent.altKey){

			switch(intKeyCode){

				case 32:

					this.slideshowIsPlaying = (this.slideshowIsPlaying)? false : true;

					if(this.slideshowIsPlaying){

						this.startSlideshow();

					}

					else{

						this.stopSlideshow();

					}

					this.preventDefaultEventBehavior(oEvent);

					break;

				case 37:

				case 38:

					this.previousImage();

					this.preventDefaultEventBehavior(oEvent);

					break;

				case 39:

				case 40:

					this.nextImage();

					this.preventDefaultEventBehavior(oEvent);

					break;

			}

		}

	},

	

	preventDefaultEventBehavior : function (oEvent){

		if(oEvent){

			oEvent.returnValue = false;

			if(oEvent.preventDefault){

				oEvent.preventDefault();

			}

		}

	}

};

// ---

addEvent(window, "load", function(){JaS.init();}, false);

addEvent(window, "unload", function(){JaS.closeSession();}, false);

// ---

// Utility functions

function addEvent(oObject, strEvent, oFunction, bCapture){

	if(oObject){

		if(oObject.addEventListener){

			oObject.addEventListener(strEvent, oFunction, bCapture);

		}

		else if(window.attachEvent){

			oObject.attachEvent(("on" + strEvent), oFunction)

		}

	}

}

// ---

function $(strId){

	return document.getElementById(strId);

}

// ---

if(typeof Array.prototype.push != "function"){

	Array.prototype.push = ArrayPush;

	function ArrayPush(value){

		this[this.length] = value;

	}

}

// ---