//// -----------------------------------------------------------------------------------
////
////	Lightbox v2.04
////	by Lokesh Dhakar - http://www.lokeshdhakar.com
////	Last Modification: 2/9/08
////
////	For more information, visit:
////	http://lokeshdhakar.com/projects/lightbox2/
////
////	Licensed under the Creative Commons Attribution 2.5 License - http://creativecommons.org/licenses/by/2.5/
////  	- Free for use in both personal and commercial projects
////		- Attribution requires leaving author name, author link, and the license info intact.
////	
////  Thanks: Scott Upton(uptonic.com), Peter-Paul Koch(quirksmode.com), and Thomas Fuchs(mir.aculo.us) for ideas, libs, and snippets.
////  		Artemy Tregubenko (arty.name) for cleanup and help in updating to latest ver of proto-aculous.
////
//// -----------------------------------------------------------------------------------
///*

//    Table of Contents
//    -----------------
//    Configuration

//    Lightbox Class Declaration
//    - initialize()
//    - updateImageList()
//    - start()
//    - changeImage()
//    - resizeImageContainer()
//    - showImage()
//    - updateDetails()
//    - updateNav()
//    - enableKeyboardNav()
//    - disableKeyboardNav()
//    - keyboardAction()
//    - preloadNeighborImages()
//    - end()
//    
//    Function Calls
//    - document.observe()
//   
//*/
//// -----------------------------------------------------------------------------------

////
////  Configurationl
////
//LightboxOptions = Object.extend({
//    fileLoadingImage:        'images/loading.gif',     
//    fileBottomNavCloseImage: 'images/closelabel.gif',

//    overlayOpacity: 0.8,   // controls transparency of shadow overlay

//    animate: true,         // toggles resizing animations
//    resizeSpeed: 7,        // controls the speed of the image resizing animations (1=slowest and 10=fastest)

//    borderSize: 10,         //if you adjust the padding in the CSS, you will need to update this variable

//	// When grouping images this is used to write: Image # of #.
//	// Change it for non-english localization
//	labelImage: "Image",
//	labelOf: "of"
//}, window.LightboxOptions || {});

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

//var Lightbox = Class.create();

//Lightbox.prototype = {
//    imageArray: [],
//    activeImage: undefined,
//    
//    // initialize()
//    // Constructor runs on completion of the DOM loading. Calls updateImageList and then
//    // the function inserts html at the bottom of the page which is used to display the shadow 
//    // overlay and the image container.
//    //
//    initialize: function() {    
//        
//        this.updateImageList();
//        
//        this.keyboardAction = this.keyboardAction.bindAsEventListener(this);

//        if (LightboxOptions.resizeSpeed > 10) LightboxOptions.resizeSpeed = 10;
//        if (LightboxOptions.resizeSpeed < 1)  LightboxOptions.resizeSpeed = 1;

//	    this.resizeDuration = LightboxOptions.animate ? ((11 - LightboxOptions.resizeSpeed) * 0.15) : 0;
//	    this.overlayDuration = LightboxOptions.animate ? 0.2 : 0;  // shadow fade in/out duration

//        // When Lightbox starts it will resize itself from 250 by 250 to the current image dimension.
//        // If animations are turned off, it will be hidden as to prevent a flicker of a
//        // white 250 by 250 box.
//        var size = (LightboxOptions.animate ? 250 : 1) + 'px';
//        

//        // 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 = $$('body')[0];

//		objBody.appendChild(Builder.node('div',{id:'overlay'}));
//	
//        objBody.appendChild(Builder.node('div',{id:'lightbox'}, [
//            Builder.node('div',{id:'outerImageContainer'}, 
//                Builder.node('div',{id:'imageContainer'}, [
//                    Builder.node('img',{id:'lightboxImage'}), 
//                    Builder.node('div',{id:'hoverNav'}, [
//                        Builder.node('a',{id:'prevLink', href: '#' }),
//                        Builder.node('a',{id:'nextLink', href: '#' })
//                    ]),
//                    Builder.node('div',{id:'loading'}, 
//                        Builder.node('a',{id:'loadingLink', href: '#' }, 
//                            Builder.node('img', {src: LightboxOptions.fileLoadingImage})
//                        )
//                    )
//                ])
//            ),
//            Builder.node('div', {id:'imageDataContainer'},
//                Builder.node('div',{id:'imageData'}, [
//                    Builder.node('div',{id:'imageDetails'}, [
//                        Builder.node('span',{id:'caption'}),
//                        Builder.node('span',{id:'numberDisplay'})
//                    ]),
//                    Builder.node('div',{id:'bottomNav'},
//                        Builder.node('a',{id:'bottomNavClose', href: '#' },
//                            Builder.node('img', { src: LightboxOptions.fileBottomNavCloseImage })
//                        )
//                    )
//                ])
//            )
//        ]));


//		$('overlay').hide().observe('click', (function() { this.end(); }).bind(this));
//		$('lightbox').hide().observe('click', (function(event) { if (event.element().id == 'lightbox') this.end(); }).bind(this));
//		$('outerImageContainer').setStyle({ width: size, height: size });
//		$('prevLink').observe('click', (function(event) { event.stop(); this.changeImage(this.activeImage - 1); }).bindAsEventListener(this));
//		$('nextLink').observe('click', (function(event) { event.stop(); this.changeImage(this.activeImage + 1); }).bindAsEventListener(this));
//		$('loadingLink').observe('click', (function(event) { event.stop(); this.end(); }).bind(this));
//		$('bottomNavClose').observe('click', (function(event) { event.stop(); this.end(); }).bind(this));

//        var th = this;
//        (function(){
//            var ids = 
//                'overlay lightbox outerImageContainer imageContainer lightboxImage hoverNav prevLink nextLink loading loadingLink ' + 
//                'imageDataContainer imageData imageDetails caption numberDisplay bottomNav bottomNavClose';   
//            $w(ids).each(function(id){ th[id] = $(id); });
//        }).defer();
//    },

//    //
//    // updateImageList()
//    // Loops through anchor tags looking for 'lightbox' references and applies onclick
//    // events to appropriate links. You can rerun after dynamically adding images w/ajax.
//    //
//    updateImageList: function() {   
//        this.updateImageList = Prototype.emptyFunction;

//        document.observe('click', (function(event){
//            var target = event.findElement('a[rel^=lightbox]') || event.findElement('area[rel^=lightbox]');
//            if (target) {
//                event.stop();
//                this.start(target);
//            }
//        }).bind(this));
//    },
//    
//    //
//    //  start()
//    //  Display overlay and lightbox. If image is part of a set, add siblings to imageArray.
//    //
//    start: function(imageLink) {    

//        $$('select', 'object', 'embed').each(function(node){ node.style.visibility = 'hidden' });

//        // stretch overlay to fill page and fade in
//        var arrayPageSize = this.getPageSize();
//        $('overlay').setStyle({ width: arrayPageSize[0] + 'px', height: arrayPageSize[1] + 'px' });

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

//        this.imageArray = [];
//        var imageNum = 0;       

//        if ((imageLink.rel == 'lightbox')){
//            // if image is NOT part of a set, add single image to imageArray
//            this.imageArray.push([imageLink.href, imageLink.title]);         
//        } else {
//            // if image is part of a set..
//            this.imageArray = 
//                $$(imageLink.tagName + '[href][rel="' + imageLink.rel + '"]').
//                collect(function(anchor){ return [anchor.href, anchor.title]; }).
//                uniq();
//            
//            while (this.imageArray[imageNum][0] != imageLink.href) { imageNum++; }
//        }

//        // calculate top and left offset for the lightbox 
//        var arrayPageScroll = document.viewport.getScrollOffsets();
//        var lightboxTop = arrayPageScroll[1] + (document.viewport.getHeight() / 10);
//        var lightboxLeft = arrayPageScroll[0];
//        this.lightbox.setStyle({ top: lightboxTop + 'px', left: lightboxLeft + 'px' }).show();
//        
//        this.changeImage(imageNum);
//    },

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

//        // hide elements during transition
//        if (LightboxOptions.animate) this.loading.show();
//        this.lightboxImage.hide();
//        this.hoverNav.hide();
//        this.prevLink.hide();
//        this.nextLink.hide();
//		// HACK: Opera9 does not currently support scriptaculous opacity and appear fx
//        this.imageDataContainer.setStyle({opacity: .0001});
//        this.numberDisplay.hide();      
//        
//        var imgPreloader = new Image();
//        
//        // once image is preloaded, resize image container


//        imgPreloader.onload = (function(){
//            this.lightboxImage.src = this.imageArray[this.activeImage][0];
//            this.resizeImageContainer(imgPreloader.width, imgPreloader.height);
//        }).bind(this);
//        imgPreloader.src = this.imageArray[this.activeImage][0];
//    },

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

//        // get current width and height
//        var widthCurrent  = this.outerImageContainer.getWidth();
//        var heightCurrent = this.outerImageContainer.getHeight();

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

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

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

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

//        // if new and old image are same size and no scaling transition is necessary, 
//        // do a quick pause to prevent image flicker.
//        var timeout = 0;
//        if ((hDiff == 0) && (wDiff == 0)){
//            timeout = 100;
//            if (Prototype.Browser.IE) timeout = 250;   
//        }

//        (function(){
//            this.prevLink.setStyle({ height: imgHeight + 'px' });
//            this.nextLink.setStyle({ height: imgHeight + 'px' });
//            this.imageDataContainer.setStyle({ width: widthNew + 'px' });

//            this.showImage();
//        }).bind(this).delay(timeout / 1000);
//    },
//    
//    //
//    //  showImage()
//    //  Display image and begin preloading neighbors.
//    //
//    showImage: function(){
//        this.loading.hide();
//        new Effect.Appear(this.lightboxImage, { 
//            duration: this.resizeDuration, 
//            queue: 'end', 
//            afterFinish: (function(){ this.updateDetails(); }).bind(this) 
//        });
//        this.preloadNeighborImages();
//    },

//    //
//    //  updateDetails()
//    //  Display caption, image number, and bottom nav.
//    //
//    updateDetails: function() {
//    
//        // if caption is not null
//        if (this.imageArray[this.activeImage][1] != ""){
//            this.caption.update(this.imageArray[this.activeImage][1]).show();
//        }
//        
//        // if image is part of set display 'Image x of x' 
//        if (this.imageArray.length > 1){
//            this.numberDisplay.update( LightboxOptions.labelImage + ' ' + (this.activeImage + 1) + ' ' + LightboxOptions.labelOf + '  ' + this.imageArray.length).show();
//        }

//        new Effect.Parallel(
//            [ 
//                new Effect.SlideDown(this.imageDataContainer, { sync: true, duration: this.resizeDuration, from: 0.0, to: 1.0 }), 
//                new Effect.Appear(this.imageDataContainer, { sync: true, duration: this.resizeDuration }) 
//            ], 
//            { 
//                duration: this.resizeDuration, 
//                afterFinish: (function() {
//	                // update overlay size and update nav
//	                var arrayPageSize = this.getPageSize();
//	                this.overlay.setStyle({ height: arrayPageSize[1] + 'px' });
//	                this.updateNav();
//                }).bind(this)
//            } 
//        );
//    },

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

//        this.hoverNav.show();               

//        // if not first image in set, display prev image button
//        if (this.activeImage > 0) this.prevLink.show();

//        // if not last image in set, display next image button
//        if (this.activeImage < (this.imageArray.length - 1)) this.nextLink.show();
//        
//        this.enableKeyboardNav();
//    },

//    //
//    //  enableKeyboardNav()
//    //
//    enableKeyboardNav: function() {
//        document.observe('keydown', this.keyboardAction); 
//    },

//    //
//    //  disableKeyboardNav()
//    //
//    disableKeyboardNav: function() {
//        document.stopObserving('keydown', this.keyboardAction); 
//    },

//    //
//    //  keyboardAction()
//    //
//    keyboardAction: function(event) {
//        var keycode = event.keyCode;

//        var escapeKey;
//        if (event.DOM_VK_ESCAPE) {  // mozilla
//            escapeKey = event.DOM_VK_ESCAPE;
//        } else { // ie
//            escapeKey = 27;
//        }

//        var key = String.fromCharCode(keycode).toLowerCase();
//        
//        if (key.match(/x|o|c/) || (keycode == escapeKey)){ // close lightbox
//            this.end();
//        } else if ((key == 'p') || (keycode == 37)){ // display previous image
//            if (this.activeImage != 0){
//                this.disableKeyboardNav();
//                this.changeImage(this.activeImage - 1);
//            }
//        } else if ((key == 'n') || (keycode == 39)){ // display next image
//            if (this.activeImage != (this.imageArray.length - 1)){
//                this.disableKeyboardNav();
//                this.changeImage(this.activeImage + 1);
//            }
//        }
//    },

//    //
//    //  preloadNeighborImages()
//    //  Preload previous and next images.
//    //
//    preloadNeighborImages: function(){
//        var preloadNextImage, preloadPrevImage;
//        if (this.imageArray.length > this.activeImage + 1){
//            preloadNextImage = new Image();
//            preloadNextImage.src = this.imageArray[this.activeImage + 1][0];
//        }
//        if (this.activeImage > 0){
//            preloadPrevImage = new Image();
//            preloadPrevImage.src = this.imageArray[this.activeImage - 1][0];
//        }
//    
//    },

//    //
//    //  end()
//    //
//    end: function() {
//        this.disableKeyboardNav();
//        this.lightbox.hide();
//        new Effect.Fade(this.overlay, { duration: this.overlayDuration });
//        $$('select', 'object', 'embed').each(function(node){ node.style.visibility = 'visible' });
//    },

//    //
//    //  getPageSize()
//    //
//    getPageSize: function() {
//	        
//	     var xScroll, yScroll;
//		
//		if (window.innerHeight && window.scrollMaxY) {	
//			xScroll = window.innerWidth + window.scrollMaxX;
//			yScroll = window.innerHeight + window.scrollMaxY;
//		} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
//			xScroll = document.body.scrollWidth;
//			yScroll = document.body.scrollHeight;
//		} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
//			xScroll = document.body.offsetWidth;
//			yScroll = document.body.offsetHeight;
//		}
//		
//		var windowWidth, windowHeight;
//		
//		if (self.innerHeight) {	// all except Explorer
//			if(document.documentElement.clientWidth){
//				windowWidth = document.documentElement.clientWidth; 
//			} else {
//				windowWidth = self.innerWidth;
//			}
//			windowHeight = self.innerHeight;
//		} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
//			windowWidth = document.documentElement.clientWidth;
//			windowHeight = document.documentElement.clientHeight;
//		} else if (document.body) { // other Explorers
//			windowWidth = document.body.clientWidth;
//			windowHeight = document.body.clientHeight;
//		}	
//		
//		// for small pages with total height less then height of the viewport
//		if(yScroll < windowHeight){
//			pageHeight = windowHeight;
//		} else { 
//			pageHeight = yScroll;
//		}
//	
//		// for small pages with total width less then width of the viewport
//		if(xScroll < windowWidth){	
//			pageWidth = xScroll;		
//		} else {
//			pageWidth = windowWidth;
//		}

//		return [pageWidth,pageHeight];
//	}
//}

//document.observe('dom:loaded', function () { new Lightbox(); });





/**
* jQuery Lightbox
* Version 0.5 - 11/29/2007
* @author Warren Krewenki
*
* Changes by:
* @author Krzysztof Kotowicz <koto at webworkers dot pl>:
*  - bugfix: multiple instances of Lightbox galleries allowed
*    (using opts variable instead of $.fn.lightbox.defaults)
*  - bugfix: use var for local variables in a few functions
*  - added support for navbarOnTop setting
*  - added support for displayTitle setting
*  - added support for slideNavBar setting (with slideNavBarSpeed)
*  - added support for displayHelp setting
*  - added support for fitToScreen setting (ported Lightbox VinDSL hack)
*    (see http://www.huddletogether.com/forum/comments.php?DiscussionID=307)
*  - plugin now uses jQuery.width() and jQuery.height()
*  - removed eval() calls
*  - removed destroyElement - uses jQuery.remove()
*  - use of prevLinkText, nextLinkText and help
*  - all strings are now placed in opts.strings to allow for customization/translation
*
* Based on Lightbox 2 by Lokesh Dhakar (http://www.huddletogether.com/projects/lightbox2/)
* Originally written to make use of the Prototype framework, and Script.acalo.us, now altered to use jQuery.
*
**/

(function ($) {
    var opts;

    $.fn.lightbox = function (options) {
        // build main options
        opts = $.extend({}, $.fn.lightbox.defaults, options);

        // initalize the lightbox
        $.fn.lightbox.initialize();
        return this.each(function () {
            $(this).click(function () {
                $(this).lightbox.start(this);
                return false;
            });
        });
    };

    // lightbox functions
    $.fn.lightbox.initialize = function () {
        $('#overlay').remove();
        $('#lightbox').remove();
        opts.inprogress = false;
        var outerImage = '<div id="outerImageContainer"><div id="imageContainer"><img id="lightboxImage"><div id="hoverNav"><a href="javascript://" title="' + opts.strings.prevLinkTitle + '" id="prevLink"></a><a href="javascript://" id="nextLink" title="' + opts.strings.nextLinkTitle + '"></a></div><div id="loading"><a href="javascript://" id="loadingLink"><img src="' + opts.fileLoadingImage + '"></a></div></div></div>';
        var imageData = '<div id="imageDataContainer" class="clearfix"><div id="imageData"><div id="imageDetails"><span id="caption"></span><span id="numberDisplay"></span></div><div id="bottomNav">'

        if (opts.displayHelp)
            imageData += '<span id="helpDisplay">' + opts.strings.help + '</span>';

        imageData += '<a href="javascript://" id="bottomNavClose" title="' + opts.strings.closeTitle + '"><img src="' + opts.fileBottomNavCloseImage + '"></a></div></div></div>';

        var string;

        if (opts.navbarOnTop) {
            string = '<div id="overlay"></div><div id="lightbox">' + imageData + outerImage + '</div>';
            $("body").append(string);
            $("#imageDataContainer").addClass('ontop');
        } else {
            string = '<div id="overlay"></div><div id="lightbox">' + outerImage + imageData + '</div>';
            $("body").append(string);
        }

        $("#overlay").click(function () { $.fn.lightbox.end(); }).hide();
        $("#lightbox").click(function () { $.fn.lightbox.end(); }).hide();
        $("#loadingLink").click(function () { $.fn.lightbox.end(); return false; });
        $("#bottomNavClose").click(function () { $.fn.lightbox.end(); return false; });
        $('#outerImageContainer').width(opts.widthCurrent).height(opts.heightCurrent);
        $('#imageDataContainer').width(opts.widthCurrent);
    };

    $.fn.lightbox.getPageSize = function () {
        var xScroll, yScroll;

        if (window.innerHeight && window.scrollMaxY) {
            xScroll = window.innerWidth + window.scrollMaxX;
            yScroll = window.innerHeight + window.scrollMaxY;
        } else if (document.body.scrollHeight > document.body.offsetHeight) { // all but Explorer Mac
            xScroll = document.body.scrollWidth;
            yScroll = document.body.scrollHeight;
        } else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
            xScroll = document.body.offsetWidth;
            yScroll = document.body.offsetHeight;
        }

        var windowWidth, windowHeight;

        if (self.innerHeight) { // all except Explorer
            if (document.documentElement.clientWidth) {
                windowWidth = document.documentElement.clientWidth;
            } else {
                windowWidth = self.innerWidth;
            }
            windowHeight = self.innerHeight;
        } else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
            windowWidth = document.documentElement.clientWidth;
            windowHeight = document.documentElement.clientHeight;
        } else if (document.body) { // other Explorers
            windowWidth = document.body.clientWidth;
            windowHeight = document.body.clientHeight;
        }

        // for small pages with total height less then height of the viewport
        if (yScroll < windowHeight) {
            pageHeight = windowHeight;
        } else {
            pageHeight = yScroll;
        }


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

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


    $.fn.lightbox.getPageScroll = function () {
        var xScroll, yScroll;

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

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

    $.fn.lightbox.pause = function (ms) {
        var date = new Date();
        var curDate = null;
        do { curDate = new Date(); }
        while (curDate - date < ms);
    };

    $.fn.lightbox.start = function (imageLink) {

        $("select, embed, object").hide();
        var arrayPageSize = $.fn.lightbox.getPageSize();
        $("#overlay").hide().css({ width: '100%', height: arrayPageSize[1] + 'px', opacity: opts.overlayOpacity }).fadeIn();
        opts.imageArray = [];
        imageNum = 0;

        var anchors = document.getElementsByTagName(imageLink.tagName);

        // if image is NOT part of a set..
        if (!imageLink.rel || (imageLink.rel == '')) {
            // add single image to Lightbox.imageArray
            opts.imageArray.push(new Array(imageLink.href, opts.displayTitle ? imageLink.title : ''));
        } else {
            // if image is part of a set..
            $("a").each(function () {
                if (this.href && (this.rel == imageLink.rel)) {
                    opts.imageArray.push(new Array(this.href, opts.displayTitle ? this.title : ''));
                }
            })


            for (i = 0; i < opts.imageArray.length; i++) {
                for (j = opts.imageArray.length - 1; j > i; j--) {
                    if (opts.imageArray[i][0] == opts.imageArray[j][0]) {
                        opts.imageArray.splice(j, 1);
                    }
                }
            }
            while (opts.imageArray[imageNum][0] != imageLink.href) { imageNum++; }
        }

        // calculate top and left offset for the lightbox
        var arrayPageScroll = $.fn.lightbox.getPageScroll();
        var lightboxTop = arrayPageScroll[1] + (arrayPageSize[3] / 10);
        var lightboxLeft = arrayPageScroll[0];
        $('#lightbox').css({ top: lightboxTop + 'px', left: lightboxLeft + 'px' }).show();


        if (!opts.slideNavBar)
            $('#imageData').hide();

        $.fn.lightbox.changeImage(imageNum);

    };

    $.fn.lightbox.changeImage = function (imageNum) {
        if (opts.inprogress == false) {
            opts.inprogress = true;
            opts.activeImage = imageNum; // update global var

            // hide elements during transition
            $('#loading').show();
            $('#lightboxImage').hide();
            $('#hoverNav').hide();
            $('#prevLink').hide();
            $('#nextLink').hide();

            if (opts.slideNavBar) { // delay preloading image until navbar will slide up
                // $('#imageDataContainer').slideUp(opts.navBarSlideSpeed, $.fn.doChangeImage);
                $('#imageDataContainer').hide();
                $('#imageData').hide();
                $.fn.doChangeImage();
            } else {
                $.fn.doChangeImage();
            }
        }
    };

    $.fn.doChangeImage = function () {

        imgPreloader = new Image();

        // once image is preloaded, resize image container
        imgPreloader.onload = function () {
            var newWidth = imgPreloader.width;
            var newHeight = imgPreloader.height;


            if (opts.fitToScreen) {
                var arrayPageSize = $.fn.lightbox.getPageSize();
                var ratio;
                var initialPageWidth = arrayPageSize[2] - 2 * opts.borderSize;
                var initialPageHeight = arrayPageSize[3] - 200;

                if (imgPreloader.height > initialPageHeight) {
                    newWidth = parseInt((initialPageHeight / imgPreloader.height) * imgPreloader.width);
                    newHeight = initialPageHeight;
                }
                else if (imgPreloader.width > initialPageWidth) {
                    newHeight = parseInt((initialPageWidth / imgPreloader.width) * imgPreloader.height);
                    newWidth = initialPageWidth;
                }
            }

            $('#lightboxImage').attr('src', opts.imageArray[opts.activeImage][0])
							   .width(newWidth).height(newHeight);
            $.fn.lightbox.resizeImageContainer(newWidth, newHeight);
        }

        imgPreloader.src = opts.imageArray[opts.activeImage][0];
    }

    $.fn.lightbox.end = function () {
        $.fn.lightbox.disableKeyboardNav();
        $('#lightbox').hide();
        $('#overlay').fadeOut();
        $('select, object, embed').show();
    };

    $.fn.lightbox.preloadNeighborImages = function () {
        if ((opts.imageArray.length - 1) > opts.activeImage) {
            preloadNextImage = new Image();
            preloadNextImage.src = opts.imageArray[opts.activeImage + 1][0];
        }
        if (opts.activeImage > 0) {
            preloadPrevImage = new Image();
            preloadPrevImage.src = opts.imageArray[opts.activeImage - 1][0];
        }
    };

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

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

        if ((key == 'x') || (key == 'o') || (key == 'c') || (keycode == escapeKey)) { // close lightbox
            $.fn.lightbox.end();
        } else if ((key == 'p') || (keycode == 37)) { // display previous image
            if (opts.activeImage != 0) {
                $.fn.lightbox.disableKeyboardNav();
                $.fn.lightbox.changeImage(opts.activeImage - 1);
            }
        } else if ((key == 'n') || (keycode == 39)) { // display next image
            if (opts.activeImage != (opts.imageArray.length - 1)) {
                $.fn.lightbox.disableKeyboardNav();
                $.fn.lightbox.changeImage(opts.activeImage + 1);
            }
        }
    };

    $.fn.lightbox.resizeImageContainer = function (imgWidth, imgHeight) {
        // get current width and height
        opts.widthCurrent = document.getElementById('outerImageContainer').offsetWidth;
        opts.heightCurrent = document.getElementById('outerImageContainer').offsetHeight;

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

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

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

        $('#imageDataContainer').animate({ width: widthNew }, opts.resizeSpeed, 'linear');
        $('#outerImageContainer').animate({ width: widthNew }, opts.resizeSpeed, 'linear', function () {
            $('#outerImageContainer').animate({ height: heightNew }, opts.resizeSpeed, 'linear', function () {
                $.fn.lightbox.showImage();
            });
        });


        // 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 (jQuery.browser.msie) { $.fn.lightbox.pause(250); } else { $.fn.lightbox.pause(100); }
        }

        $('#prevLink').height(imgHeight);
        $('#nextLink').height(imgHeight);
    };

    $.fn.lightbox.showImage = function () {
        $('#loading').hide();
        $('#lightboxImage').fadeIn("fast");
        $.fn.lightbox.updateDetails();
        $.fn.lightbox.preloadNeighborImages();

        opts.inprogress = false;
    };

    $.fn.lightbox.updateDetails = function () {

        if (opts.imageArray[opts.activeImage][1]) {
            $('#caption').html(opts.imageArray[opts.activeImage][1]).show();
        }

        // if image is part of set display 'Image x of x'
        if (opts.imageArray.length > 1) {
            var nav_html;

            nav_html = opts.strings.image + (opts.activeImage + 1) + opts.strings.of + opts.imageArray.length;

            // display previous / next text links
            if ((opts.activeImage) > 0) {
                nav_html = '<a title="' + opts.strings.prevLinkTitle + '" href="#" id="prevLinkText">' + opts.strings.prevLinkText + "</a>" + nav_html;
            }

            if ((opts.activeImage + 1) < opts.imageArray.length) {
                nav_html += '<a title="' + opts.strings.nextLinkTitle + '" href="#" id="nextLinkText">' + opts.strings.nextLinkText + "</a>";
            }

            $('#numberDisplay').html(nav_html).show();
        }

        if (opts.slideNavBar) {
            $("#imageData").slideDown(opts.navBarSlideSpeed);
        } else {
            $("#imageData").show();
        }

        var arrayPageSize = $.fn.lightbox.getPageSize();
        $('#overlay').height(arrayPageSize[1]);
        $.fn.lightbox.updateNav();
    };

    $.fn.lightbox.updateNav = function () {
        $('#hoverNav').show();

        // if not first image in set, display prev image button
        if (opts.activeImage != 0) {
            $('#prevLink,#prevLinkText').show().click(function () {
                $.fn.lightbox.changeImage(opts.activeImage - 1); return false;
            });
        }

        // if not last image in set, display next image button
        if (opts.activeImage != (opts.imageArray.length - 1)) {
            $('#nextLink,#nextLinkText').show().click(function () {

                $.fn.lightbox.changeImage(opts.activeImage + 1); return false;
            });
        }

        $.fn.lightbox.enableKeyboardNav();
    };


    $.fn.lightbox.enableKeyboardNav = function () {
        document.onkeydown = $.fn.lightbox.keyboardAction;
    };

    $.fn.lightbox.disableKeyboardNav = function () {
        document.onkeydown = '';
    };

    $.fn.lightbox.defaults = {
        fileLoadingImage: 'images/loading.gif',
        fileBottomNavCloseImage: 'images/closelabel.gif',
        overlayOpacity: 0.8,
        borderSize: 10,
        imageArray: new Array,
        activeImage: null,
        inprogress: false,
        resizeSpeed: 350,
        widthCurrent: 250,
        heightCurrent: 250,
        xScale: 1,
        yScale: 1,
        displayTitle: true,
        navbarOnTop: false,
        slideNavBar: false, // slide nav bar up/down between image resizing transitions
        navBarSlideSpeed: 350,
        displayHelp: false,
        strings: {
            help: ' \u2190 / P - previous image\u00a0\u00a0\u00a0\u00a0\u2192 / N - next image\u00a0\u00a0\u00a0\u00a0ESC / X - close image gallery',
            prevLinkTitle: 'previous image',
            nextLinkTitle: 'next image',
            prevLinkText: '&laquo; Previous',
            nextLinkText: 'Next &raquo;',
            closeTitle: 'close image gallery',
            image: 'Image ',
            of: ' of '
        },
        fitToScreen: false		// resize images if they are bigger than window
    };
})(jQuery);