// -----------------------------------------------------------------------------------
//
//	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()
   
*/
// -----------------------------------------------------------------------------------

//
//  Configuration
//
LightboxOptions = Object.extend({
    fileLoadingImage:        'http://core.patricksteel.co.uk/images/furniture/lightbox/loadinggrey.gif',     
    fileBottomNavCloseImage: 'http://core.patricksteel.co.uk/images/furniture/lightbox/close.png',

    overlayOpacity: 0.9,   // controls transparency of shadow overlay

    animate: true,         // toggles resizing animations
    resizeSpeed: 8,        // 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: [],
    imageDB : [],
    imgPreloader : null,
    activeImage: null,
    sizePricePanel : null,
    isShowing : false,
    isLoading : false,
    effects : [],
    hasInformation : false,
    closingPrevented : false,
    viewer : null,
    hasZoom : false,
    // 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(hasInfo, imgData) {
        this.imageDB = imgData;
        this.hasInformation = hasInfo;
        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:'bottomNav'},
			        	Builder.node('a',{id:'bottomNavClose', href: '#' },
			            	Builder.node('img', { src: LightboxOptions.fileBottomNavCloseImage })
			        	)
			    	),
			    	Builder.node('div',{id:'imageContainer'}, [
			        	Builder.node('img',{id:'lightboxImage'}),
			        	Builder.node('div',{id:'loading'}, 
			            	Builder.node('a',{id:'loadingLink', href: '#' }, [
                                Builder.node('img', {src: LightboxOptions.fileLoadingImage}),
                                Builder.node('p', {id: 'loadingZoomTxt'}, "Loading a large image")
			            	])
			        	)
			    	]),
                    Builder.node('div', {id:'zoomImageContainer'}, [
                        Builder.node('div', {id:'zoomViewer'}),
                        Builder.node('a', {id:"zoomIn", href: "#"}, [
                            Builder.node("span"),
                            "Zoom In"
                        ]),
                        Builder.node('a', {id:"zoomOut", href: "#"}, [
                            Builder.node("span"),
                            "Zoom Out"
                        ])
                    ])
				]),
				Builder.node('div', { id:'imageDataContainer' }, [
					Builder.node('div', { id: 'hoverNav' }, [
						Builder.node('p', { id: 'previous' }, 
							Builder.node('a', {id:'prevLink', href: '#' }, "Previous")
						),
                        Builder.node('p', { id: 'next' }, 
							Builder.node('a', { id:'nextLink', href: '#' }, "Next")
						),
						Builder.node('p', { id: 'caption' })
			    	]),
			    	Builder.node('div',{id:'imageData'},
			        	Builder.node('div',{id:'imageDetails'}, [
							Builder.node('span', {id: 'imageInformation'}),
			            	Builder.node('span',{id:'numberDisplay'}),
                            
                                Builder.node('p', { id : 'size_price_info' },
                                    Builder.node('a', {id:'sizePriceLink', href:'#'}, "View sizes and prices")
                                )
							
			        	])
					)
				])
			])
		);

		$('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').hide().observe('click', (function(event) { event.stop(); this.changeImage(this.activeImage - 1); }).bindAsEventListener(this));
		$('nextLink').hide().observe('click', (function(event) { event.stop(); this.changeImage(this.activeImage + 1); }).bindAsEventListener(this));
		$('loadingZoomTxt').hide();
		$('sizePriceLink' ).hide().observe('click', (function(event) { event.stop(); this.launchSizePricePanel(); }).bindAsEventListener(this));
		
		$('loadingLink').observe('click', (function(event) { event.stop(); this.end(); }).bind(this));
		$('bottomNavClose').observe('click', (function(event) { event.stop(); this.end(); }).bind(this));
        
        if($$('.furniture_site').length > 0) {
            $('imageDataContainer').insert({
                bottom: new Element('img', {src: "http://core.patricksteel.co.uk/images/furniture/furniture_logo.gif", style: "display: block; text-align: center; width: 26px; position: relative; margin: 20px auto;", height: "35", width: "32"})
            });
        } else {
            /*$('imageDataContainer').insert({
                bottom: new Element('img', {src: "http://core.patricksteel.co.uk/images/furniture/ps_logo.gif", style: "display: block; text-align: center; width: 32px; position: relative; margin: 0pt auto 10px;", height: "35", width: "32"})
            });*/
        }
        
        $('zoomIn').hide().observe('click', (function(event) {
                event.stop();
                this.doZoomIn();
            }).bind(this)
        );
        $('zoomOut').hide().observe('click', (function(event) {
                event.stop();
                this.doZoomOut();
            }).bind(this)
        );
        
        if (navigator.userAgent.indexOf('iPhone') != -1) {
            $('prevLink').setStyle({ width : '100px' });
            $('nextLink').setStyle({ width : '100px' });
        }
        
        
        //this.viewer = new Seadragon.Viewer("zoomViewer");
        
        var th = this;
        (function(){
            var ids = 
                'overlay lightbox outerImageContainer imageContainer lightboxImage hoverNav sizePriceLink prevLink nextLink loading loadingLink zoomImageContainer zoomIn zoomOut zoomViewer ' + 
                'imageDataContainer imageData imageDetails caption imageInformation 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));
    },
    //
	//	updateURL()
	//	ADDED BY BRETT - Add a hash to the page URL in the format #lb/imageID/ where imageID is an integer 
	// 	matching an image in the database - gives the lightbox a unique URL for bookmarking
	//
	updateURL: function(id) {
		if(id == '') 
		{
			window.location.hash = "#";
		} 
		else 
		{
			var imageId = id.replace(/[\s]+/gi, '-');
			window.location.hash = "#/lb/"+imageId+"/";
		}
	},
    //
    //  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' });
        //this.hoverNav.hide();
		this.closingPrevented = false;
		if( this.sizePricePanel ) this.sizePricePanel.hide();
		this.sizePriceLink.hide();
        this.prevLink.hide();
        this.nextLink.hide();
		this.caption.hide();
		//this.bottomNavClose.hide();
		this.imageDataContainer.hide();
        this.zoomImageContainer.hide();
        // stretch overlay to fill page and fade inb 
		this.stopAllEffects();
		
        var arrayPageSize = this.getPageSize();
        $('overlay').setStyle({ width: arrayPageSize[0] + 'px', height: arrayPageSize[1] + 'px' });
        this.effects.push( new Effect.Appear(this.overlay, { duration: this.overlayDuration, from: 0.0, to: LightboxOptions.overlayOpacity }) );

        this.imageArray = [];
        var imageNum = 0;
		var data;
		
        if ((imageLink.rel == 'lightbox')){
            // if image is NOT part of a set, add single image to imageArray
			data = (imageLink.childNodes[0] && imageLink.childNodes[0].data != undefined) ? imageLink.childNodes[0].data : '';
            this.imageArray.push([imageLink.href, imageLink.title, data , imageLink.id]);
        } else {
            // if image is part of a set..
            this.imageArray = 
                $$(imageLink.tagName + '[href][rel="' + imageLink.rel + '"]').
                collect(function(anchor){ data = (anchor.childNodes[0] && anchor.childNodes[0].data != undefined) ? anchor.childNodes[0].data : ''; return [anchor.href, anchor.title, data, anchor.id]; }).
                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) {
        if($('ZoomImage')) $('ZoomImage').remove();
        this.closingPrevented = false;
        if( this.sizePricePanel ) this.sizePricePanel.hide();
        if(imageNum == this.imageArray.length) imageNum = 0;
        if(imageNum == -1) imageNum = this.imageArray.length - 1;
        
        this.activeImage = imageNum; // update global var

        // hide elements during transition
        $('loadingZoomTxt').hide();
        if (LightboxOptions.animate) this.loading.show();
        this.lightboxImage.hide();
        // this.hoverNav.hide();
        this.sizePriceLink.hide();
        this.prevLink.hide();
        this.nextLink.hide();
        this.caption.hide();
        this.imageDataContainer.hide();
        // HACK: Opera9 does not currently support scriptaculous opacity and appear fx
        this.imageDataContainer.setStyle({opacity: .0001});
        
        this.imgPreloader = null;
        this.imgPreloader = new Image();

        // once image is preloaded, resize image container
        this.imgPreloader.onload = (function(){
            this.isLoading = false;
            this.lightboxImage.src = this.imgPreloader.src;
            this.resizeImageContainer( );
        }).bind(this);
        
        // Time to do something with the image
        var imageDBRecord = this.imageDB[this.activeImage];
        var imageArrayItem = this.imageArray[this.activeImage];
        /*if(imageDBRecord && imageDBRecord.zoomUrl){
            this.activateZoomIt(imageDBRecord.zoomUrl);
            this.updateURL(imageArrayItem[1]);
            this.zoomImageContainer.show();
        } else if (imageArrayItem && imageArrayItem.length > 1)
        {
            this.zoomImageContainer.hide();
            this.isLoading = true;
            this.imageContainer.show();
            this.imgPreloader.src = imageArrayItem[0];
            this.updateURL(imageArrayItem[1]);
        }*/
        this.zoomViewer.hide();
        this.zoomImageContainer.hide();
        this.zoomOut.hide();
        this.zoomIn.hide();
        this.hasZoom = false;
        this.isLoading = true;
        this.imageContainer.show();
        this.imgPreloader.src = imageArrayItem[0];
        this.updateURL(imageArrayItem[1]);
        this.imageContainer.title = "";
        if(imageDBRecord && imageDBRecord.zoomUrl){
            this.hasZoom = true;
            this.imageContainer.title = "Click the magnify button to zoom";
        }
    },
    
    doZoomIn : function() {
        var imageDBRecord = this.imageDB[this.activeImage];
        this.zoomOut.hide();
        this.zoomIn.hide();
        this.loading.show();
        $('loadingZoomTxt').show();
        this.lightboxImage.hide();
        
        this.imgPreloader = null;
        this.imgPreloader = new Image();

        // once image is preloaded, resize image container
       this.imgPreloader.onload = (function(){
            this.zoomOut.show();
            this.zoomIn.hide();
            this.loading.hide();
            $('loadingZoomTxt').hide();
            this.isLoading = false;
            var zoomImg = new Image();
            zoomImg.src = this.imgPreloader.src;
            zoomImg.id = "ZoomImage";
            
            this.zoomViewer.insert(zoomImg);
            this.zoomViewer.show();
            
            var nWidth = document.viewport.getWidth() - 100;
            var nHeight = document.viewport.getHeight() - 100;
            
            this.zoomImageContainer.setStyle({
                width: nWidth+"px",
                height: nHeight+"px",
                overflow: "hidden"
            });
            
            this.zoomViewer.setStyle({
                height: nHeight+"px",
                overflow:"hidden"
            });
            
            var xConstraint = -($('ZoomImage').getWidth() - nWidth);
            var yConstraint = -($('ZoomImage').getHeight() - nHeight);
            
            new Draggable('ZoomImage', {
                starteffect : null,
                endeffect: null,
                snap : function(x,y){
                    var newX, newY;
                    if(xConstraint < 0)
                    {
                        newX = (x < 0) ? (x > xConstraint ? x : xConstraint): 0;
                    }else{
                        newX = 0;
                    }
                    
                    if(yConstraint < 0)
                    {
                        newY = (y < 0) ? (y > yConstraint ? y : yConstraint) : 0;
                    } else {
                        newY = 0;
                    }
                    return[newX, newY];
                }
            });
            
            this.outerImageContainer.setStyle({
                width:(nWidth+LightboxOptions.borderSize * 2)+"px",
                height:(nHeight+LightboxOptions.borderSize * 2)+"px"
            });

            this.imageDataContainer.setStyle({width:(nWidth+LightboxOptions.borderSize * 2)+"px"});
            
            var lightboxTop = (document.viewport.getHeight()/2) - ((nHeight+50)/2);
            this.lightbox.setStyle({ top: lightboxTop + 'px' }).show();

            this.imageContainer.hide();
        }).bind(this);
        
        this.imgPreloader.src = imageDBRecord.zoomUrl;
        
        //this.activateZoomIt(imageDBRecord.zoomUrl);
    },
    
    doZoomOut : function() {
        this.zoomOut.hide();
        this.zoomIn.show();
        this.zoomViewer.hide();
        this.changeImage(this.activeImage);
    },
    
    activateZoomIt : function(url) {
        var that = this;
        url = "http://test.landscapesbypatricksteel.co.uk/images/gallery/main/main_12_windmill_wimbledon%20common.jpg"
        var ajaxUrl = "http://api.zoom.it/v1/content/?url="+encodeURIComponent(url);
        new Ajax.JSONRequest(ajaxUrl, {
            callbackParamName: "callback",
            onCreate:function(response){
                if(window.console) console.log("Create", response, response.responseJSON);
            },
            onSuccess: function(response){
                if(response.responseJSON.error){
                    if(window.console) console.log("ERROR");
                }
                var content = response.responseJSON.content;
                if(content.ready){
                    that.isLoading = false;
                    if(window.console) console.log("READY");
                    //that.viewer.openDzi(content.dzi);
                    
                    $('zoomViewer').insert("&lt;script src='http://zoom.it/t2Bm.js?width=auto&height=400px'&gt;&lt;/script&gt;");
                    
                    var nWidth = content.dzi.width;
                    var nHeight = content.dzi.height;
                    var ratio = nWidth / nHeight;
                    
                    var screenWidth = document.viewport.getWidth() - 100;
                    var screenHeight = document.viewport.getHeight() - 100;
                    // Resize the image
                    var scale, scaleX, scaleY = 1;
                    if(nWidth > screenWidth){
                        scaleX = screenWidth / nWidth;
                    }
                    if(nHeight > screenHeight) {
                        scaleY = screenHeight / nHeight;
                    }
                    if(scaleX < scaleY){
                        scale = scaleX;
                    } else {
                        scale = scaleY
                    }
                    nWidth =  nWidth * scale;
                    nHeight = nHeight * scale;
                    
                    that.zoomImageContainer.setStyle({
                        width: nWidth+"px",
                        height: nHeight+"px"
                    });
                    that.outerImageContainer.setStyle({
                        width:(nWidth+LightboxOptions.borderSize * 2)+"px",
                        height:(nHeight+LightboxOptions.borderSize * 2)+"px"
                    });

                    that.imageDataContainer.setStyle({width:(nWidth+LightboxOptions.borderSize * 2)+"px"});
                    
                    var lightboxTop = (document.viewport.getHeight()/2) - ((nHeight+50)/2);
                    that.lightbox.setStyle({ top: lightboxTop + 'px' }).show();
        
                    that.imageContainer.hide();
                    that.updateDetails();
                } else if (content.failed){
                    if(window.console) console.log(content.url + " failed to convert.");
                } else {
                    if(window.console) console.log(content.url + " is " + Math.round(100 * content.progress) + "% done.");
                }
            },
            onError: function(response){
                if(window.console) console.error(response.statusText);
            }
        });
    },
    //
    //  resizeImageContainer()
    //
    resizeImageContainer: function( ) {

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

        // get new width and height
	
        var widthNew  = ( this.imgPreloader.width + LightboxOptions.borderSize * 2);
        var heightNew = ( this.imgPreloader.height + 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) this.effects.push( new Effect.Scale(this.outerImageContainer, yScale, {scaleX: false, duration: this.resizeDuration, queue: 'front'}) ); 
        if (wDiff != 0) this.effects.push( 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);

        var lightboxTop = (document.viewport.getHeight()/2) - ((heightNew+50)/2);
        this.lightbox.setStyle({ top: lightboxTop + 'px' }).show();
    },
    
    //
    //  showImage()
    //  Display image and begin preloading neighbors.
    //
    showImage: function(){
        this.loading.hide();
        this.effects.push(new Effect.Appear(this.lightboxImage, { 
            duration: this.resizeDuration, 
            queue: 'end', 
            afterFinish: (function(){ 
				this.updateDetails(); 
				this.isShowing = true; 
				if(window.lbInt == undefined) window.setInt();
			}).bind(this) 
        }));
        this.preloadNeighborImages();
    },

    //
    //  updateDetails()
    //  Display caption, image number, and bottom nav.
    //
    updateDetails: function() {
    
        // if caption is not null
		if( this.imageArray[this.activeImage] && this.imageArray[this.activeImage].length > 1)
		{
        	if ( this.imageArray[this.activeImage][1] == undefined || this.imageArray[this.activeImage][1] != "" ){
            	 this.caption.update(this.imageArray[this.activeImage][1]);
        	} else {
				this.caption.update('');
			}
        
			if ( this.hasSizePriceInfo() && this.imageArray[this.activeImage][2] != ""){
				this.imageInformation.update('<p>&nbsp;<!-- --></p>');//this.imageArray[this.activeImage][2]);
			} else if ( this.imageArray[this.activeImage][2] != "" ){
				this.imageInformation.update('<p>'+this.imageArray[this.activeImage][2]+'</p>');
			}
            else 
            {
                this.imageInformation.update('');
            }
		}
        // 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);
        }

       new Effect.Parallel(
            [ 
			//	new Effect.SlideDown(this.hoverNav, {sync: true, duration: this.resizeDuration, from: 0.0, to: 1.0 }),
            //    new Effect.SlideDown(this.imageData, {sync: true, duration: this.resizeDuration, from: 0.0, to: 1.0}),
				new Effect.SlideDown(this.imageDataContainer, { sync: true, duration: this.resizeDuration, from: 0.0, to: 1.0 }), 
				//new Effect.SlideDown(this.imageInformation, { 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();
                    this.updateZoom();
                }).bind(this)
            } 
        );
    },

    updateZoom : function() {
        if(this.hasZoom){
            this.zoomImageContainer.show();
            this.zoomIn.show();
            this.zoomOut.hide();
        }
    },
    //
    //  updateNav()
    //  Display appropriate previous and next hover navigation.
    //
    updateNav: function() {
		if( this.hasInformation && this.hasSizePriceInfo() ) this.sizePriceLink.show();
		this.prevLink.show();
		this.nextLink.show();
		this.caption.show();
		this.effects.push(new Effect.Appear(this.bottomNavClose, { duration: this.resizeDuration }));
        // 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 {
				this.disableKeyboardNav();
                this.changeImage(this.imageArray.length - 1);
			}
        } else if ((key == 'n') || (keycode == 39)){ // display next image
            if (this.activeImage != (this.imageArray.length - 1)){
                this.disableKeyboardNav();
                this.changeImage(this.activeImage + 1);
            } else {
				this.disableKeyboardNav();
                this.changeImage(0);
			}
        }
    },

    //
    //  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() {
		if(this.closingPrevented ) return;
		if(this.isLoading)
		{
			this.imgPreloader.src = null;
			this.imgPreloader.onload = null;
			this.imgPreloader = null;
			this.isLoading = false;
		}
        this.disableKeyboardNav();
		this.updateURL('');
		this.activeImage = 0;
		//this.bottomNavClose.hide();
        this.lightboxImage.hide();
	    this.imageDataContainer.hide();
        this.lightbox.hide();
		this.isShowing = false;
		this.stopAllEffects();
        this.effects.push( new Effect.Fade(this.overlay, { duration: this.overlayDuration }) );
        $$('select', 'object', 'embed').each(function(node){ node.style.visibility = 'visible' });
    },

	stopAllEffects: function()
	{
		for( var i = 0; i < this.effects.length; ++i)
		{
			this.effects[i].cancel();
		}
	},
	
    //
    //  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];
	},
	
	hasSizePriceInfo : function() {
		var info = this.imageArray[this.activeImage][2];
		var parts = info.split("|");
		if( parts.length > 1 )
		{
			info = parts[1];
			if( info == "" ) return false;
			info = info.split(",");
			if( info.length > 0 )
			{
				return true;
			}
		}
		return false;
	},
	
	getData : function(){
        if(window.console) console.log(this.imageArray[this.activeImage]);
		var info = this.imageArray[this.activeImage][2];
		var parts = info.split("|");
		
		info = parts[1];
		info = info.replace( /\)\,\(/g, '|');
		info = info.replace( /[\(\)]/g, '');
		var inf = info.split("|");
		
		var data = [];
		
		for( var i = 0; i<inf.length; ++i)
		{
			var infArr = inf[i].split(",");
			dat = {};
			dat.quantity = infArr[0].split(":")[1];
			dat.size = infArr[1].split(":")[1];
			dat.price = infArr[2].split(":")[1];
            var to = "mail@patricksteel.co.uk";
			dat.url = "https://www.paypal.com/cgi-bin/webscr?cmd=_xclick&business="+to+"&item_name="+escape(this.imageArray[this.activeImage][1])+"&item_number="+this.imageArray[this.activeImage][3].split('-')[1]+"&amount="+this.parsePrice(dat.price)+"&currency_code=GBP&on0=size&os0="+escape(dat.size);
			data.push( dat );
		}
		return data;
	},
    parsePrice : function(price){
        if(price.match(/\D/))
        {
            price = price.replace(/\D/g, '');
        }
        price += ".00";
        return price;
    },
	getFooter : function(){
		var info = this.imageArray[this.activeImage][2];
		var parts = info.split("|");
		return parts[0].split(":")[1];
	},
	launchSizePricePanel : function() {
		var data = this.getData();
		var footerInfo = this.getFooter();
		
		if( !this.sizePricePanel ) 
		{
			this.sizePricePanel = new InfoPanel('lightbox', data, footerInfo );
			this.sizePricePanel.panel.observe('panel:closed', this.allowClose.bind(this));
			this.sizePricePanel.open();
			this.stopClose();
		}
		else
		{
			this.sizePricePanel.update( data, footerInfo );
			if( !this.sizePricePanel.isOpen )
			{
				this.sizePricePanel.open();
				this.sizePricePanel.panel.observe('panel:closed', this.allowClose.bind(this));
				this.stopClose();
			}
		}
	},
	stopClose : function() {
		this.bottomNavClose.hide();
		this.closingPrevented = true;
	},
	allowClose : function() {
		this.bottomNavClose.show();
		this.closingPrevented = false;
	}
}
/**
 *  The DOM has loaded so create a new lightbox
 */
document.observe('dom:loaded', function(){
	updateHrefsForLightbox();
	lightbox = new Lightbox(hasInformation, allImageData);
	if(lbInt == undefined) setInt();
});	
/**
 *  When the document unloads clear the polling
 */
document.observe('unload', function(){
	clearInterval(lbInt);
});	
/**
 *  Set the interval for polling the url
 */
function setInt()
{
	lbInt = setInterval(function(){ window.pollHash() }, 1000 );
};
/**
 * Update the links to the lightbox with the url to the relevant image
 */
function updateHrefsForLightbox()
{
	// We need to change the links' hrefs to work with lightbox.js
	$$('a[rel^=lightbox]').each(function(node){ 
		var href = node.readAttribute('href');
		// We need the image ID - so we get it from the href
		//var image_id = parseInt(href.split(/\?/)[1].split(/&/)[0].replace(/image=/, ''));
		var image_id = href.substring(href.lastIndexOf('/')+1, href.length);
		var image = '';
		var title = '';
		for(var i=0; i<allImageData.length; i++ )
		{
			title = allImageData[i].title.replace(/[\s]+/gi,'-');
			if(title == image_id)
			{
				image = '/images/gallery/main/'+allImageData[i].src;
				break;
			}
		}
			// We replace the href with the image url
		node.writeAttribute('href', image);
	});
};
/**
 *  Check for a hash in the url and launch the lightbox with an image
 *  where if the hash is a string it matches the image's title
 *  and if it is an integer it matches the image's id
 */
function checkURLForHash()
{
	if(window.location.hash.match(/#\/lb\//))
	{
		var image_id = window.location.hash.replace(/#\/lb\//, '').replace(/[\/]+/g, '');
		var image_src = '';
		var title = '';
		for( var i=0; i<allImageData.length; i++ )
		{
			if(image_id.toString().match(/^[0-9]/)) // If the image_id is a number match to id
			{
				title = parseInt(allImageData[i].id);
				image_id = parseInt(image_id);
				if(title == image_id)
				{
					image_src = '/images/gallery/main/'+allImageData[i].src;
					break;
				}
			}
			else    // image_id is a string so match the title
			{
				title = allImageData[i].title.replace(/[\s]+/gi, '-');
				if(title == image_id) 
				{
					image_src = '/images/gallery/main/'+allImageData[i].src;
					break;
				}
			}
		}
		var thisLink;
		$$('a[rel^=lightbox]').each(function(node)
		{
			if(typeof image_id == 'string')
			{
				var id = node.readAttribute('title').replace(/[\s]+/gi, '-');
			}
			else 
			{
				var id = node.readAttribute('id');
				id = id.substring(6, id.length);
			}
			if(image_id == id) thisLink = node;
		});
		if(thisLink) startLB(thisLink);
	} 
	else 
	{
		if(lightbox.isShowing){
			lightbox.end();
		} 
	}
}
function startLB(node)
{
	if(!lightbox.isShowing)
	{
		if(lightbox.activeImage == undefined)
		{
			lightbox.start(node);
		}
	}
	else
	{
		var imageNum = 0;
		while (lightbox.imageArray[imageNum][3] != node.id) { imageNum++; };
		if (lightbox.activeImage == imageNum) return;
		else lightbox.changeImage(imageNum);
	}
}
/**
 *  Poll the hash part of the url to check for use of the back button
 */
function pollHash()
{
	if(window.location.hash == recentHash) return;
	recentHash = window.location.hash;
	checkURLForHash();
}

function onSuccess(){
    alert("DO DAH");
}