// -----------------------------------------------------------------------------------                                                           
//                                                                                                                                              
// Lightbox v2.02                                                                                                                               
// by Lokesh Dhakar - http://www.huddletogether.com                                                                                             
// 3/31/06                                                                                                                                      
//                                                                                                                                              
// For more information on this script, visit:                                                                                                  
// http://huddletogether.com/projects/lightbox2/                                                                                                
//                                                                                                                                              
// Licensed under the Creative Commons Attribution 2.5 License - http://creativecommons.org/licenses/by/2.5/                                   
//                                                                                                                                             
// Credit also due to those who have helped, inspired, and made their code available to the public.                                            
// Including: Scott Upton(uptonic.com), Peter-Paul Koch(quirksmode.org), Thomas Fuchs(mir.aculo.us), and others.                               
//                                                                                                                                             
//                                                                                                                                             
// -----------------------------------------------------------------------------------                                                         
/*                                                                                                                                             
                                                                                                                                               
 Table of Contents                                                                                                                             
 -----------------                                                                                                                             
 Configuration                                                                                                                                 
 Global Variables                                                                                                                              
                                                                                                                                               
 Extending Built-in Objects                                                                                                                    
 - Object.extend(Element)                                                                                                                      
 - Array.prototype.removeDuplicates()                                                                                                          
 - Array.prototype.empty()                                                                                                                     
                                                                                                                                               
 Lightbox Class Declaration                                                                                                                    
 - initialize()                                                                                                                                
 - start()                                                                                                                                     
 - changeImage()                                                                                                                               
 - resizeImageContainer()                                                                                                                      
 - showImage()                                                                                                                                 
 - updateDetails()                                                                                                                             
 - updateNav()                                                                                                                                 
 - enableKeyboardNav()                                                                                                                         
 - disableKeyboardNav()                                                                                                                        
 - keyboardAction()                                                                                                                            
 - preloadNeighborImages()                                                                                                                     
 - end()                                                                                                                                       
                                                                                                                                               
 Miscellaneous Functions                                                                                                                       
 - getPageScroll()                                                                                                                             
 - getPageSize()                                                                                                                               
 - getKey()                                                                                                                                    
 - listenKey()                                                                                                                                 
 - showSelectBoxes()                                                                                                                           
 - hideSelectBoxes()                                                                                                                           
 - pause()                                                                                                                                     
 - initLightbox()                                                                                                                              
                                                                                                                                               
 Function Calls                                                                                                                                
 - addLoadEvent(initLightbox)                                                                                                                  
                                                                                                                                               
*/                                                                                                                                             
// -----------------------------------------------------------------------------------                                                         
                                                                                                                                               
//                                                                                                                                             
// Configuration                                                                                                                               
//                                                                                                                                             
var fileLoadingImage = "fotos/fade/loading.gif";                                                                                               
var fileBottomNavCloseImage = "fotos/fade/closelabel.gif";                                                                                     
                                                                                                                                               
var resizeSpeed = 7; // controls the speed of the image resizing (1=slowest and 10=fastest)                                                    
                                                                                                                                               
var borderSize = 10; //if you adjust the padding in the CSS, you will need to update this variable                                             
                                                                                                                                               
// -----------------------------------------------------------------------------------                                                         
                                                                                                                                               
//                                                                                                                                             
// Global Variables                                                                                                                            
//                                                                                                                                             
var imageArray = new Array;                                                                                                                    
var activeImage;                                                                                                                               
                                                                                                                                               
if(resizeSpeed > 10){ resizeSpeed = 10;}                                                                                                       
if(resizeSpeed < 1){ resizeSpeed = 1;}                                                                                                         
resizeDuration = (11 - resizeSpeed) * 0.15;                                                                                                    
                                                                                                                                               
// -----------------------------------------------------------------------------------                                                         
                                                                                                                                               
//                                                                                                                                             
// Additional methods for Element added by SU, Couloir                                                                                         
// - further additions by Lokesh Dhakar (huddletogether.com)                                                                                   
//                                                                                                                                             
Object.extend(Element, {                                                                                                                       
 getWidth: function(element) {                                                                                                                 
 element = $(element);                                                                                                                         
 return element.offsetWidth;                                                                                                                   
 },                                                                                                                                            
 setWidth: function(element,w) {                                                                                                               
 element = $(element);                                                                                                                         
 element.style.width = w +"px";                                                                                                                
 },                                                                                                                                            
 setHeight: function(element,h) {                                                                                                              
 element = $(element);                                                                                                                         
 element.style.height = h +"px";                                                                                                               
 },                                                                                                                                            
 setTop: function(element,t) {                                                                                                                
 element = $(element);                                                                                                                        
 element.style.top = t +"px";                                                                                                                 
 },                                                                                                                                           
 setSrc: function(element,src) {                                                                                                              
 element = $(element);                                                                                                                        
 element.src = src;                                                                                                                           
 },                                                                                                                                           
 setHref: function(element,href) {                                                                                                            
 element = $(element);                                                                                                                        
 element.href = href;                                                                                                                         
 },                                                                                                                                           
 setInnerHTML: function(element,content) {                                                                                                    
 element = $(element);                                                                                                                        
 element.innerHTML = content;                                                                                                                 
 }                                                                                                                                            
});                                                                                                                                           
                                                                                                                                              
// -----------------------------------------------------------------------------------                                                        
                                                                                                                                              
//                                                                                                                                            
// Extending built-in Array object                                                                                                            
// - array.removeDuplicates()                                                                                                                 
// - array.empty()                                                                                                                            
//                                                                                                                                            
Array.prototype.removeDuplicates = function () {                                                                                              
 for(i = 1; i < this.length; i++){                                                                                                            
 if(this[i][0] == this[i-1][0]){                                                                                                              
 this.splice(i,1);                                                                                                                            
 }                                                                                                                                            
 }                                                                                                                                            
}                                                                                                                                             
                                                                                                                                              
// -----------------------------------------------------------------------------------                                                        
                                                                                                                                              
Array.prototype.empty = function () {                                                                                                         
 for(i = 0; i <= this.length; i++){                                                                                                           
 this.shift();                                                                                                                                
 }                                                                                                                                            
}                                                                                                                                             
                                                                                                                                              
// -----------------------------------------------------------------------------------                                                        
                                                                                                                                              
//                                                                                                                                            
// Lightbox Class Declaration                                                                                                                 
// - initialize()                                                                                                                             
// - start()                                                                                                                                  
// - changeImage()                                                                                                                            
// - resizeImageContainer()                                                                                                                   
// - showImage()                                                                                                                              
// - updateDetails()                                                                                                                          
// - updateNav()                                                                                                                              
// - enableKeyboardNav()                                                                                                                      
// - disableKeyboardNav()                                                                                                                     
// - keyboardNavAction()                                                                                                                      
// - preloadNeighborImages()                                                                                                                  
// - end()                                                                                                                                    
//                                                                                                                                            
// Structuring of code inspired by Scott Upton (http://www.uptonic.com/)                                                                      
//                                                                                                                                            
var Lightbox = Class.create();                                                                                                                
                                                                                                                                              
Lightbox.prototype = {                                                                                                                        
                                                                                                                                              
 // initialize()                                                                                                                              
 // Constructor runs on completion of the DOM loading. Loops through anchor tags looking for                                                  
 // 'lightbox' references and applies onclick events to appropriate links. The 2nd section of                                                 
 // the function inserts html at the bottom of the page which is used to display the shadow                                                   
 // overlay and the image container.                                                                                                          
 //                                                                                                                                           
 initialize: function() {                                                                                                                     
 if (!document.getElementsByTagName){ return; }                                                                                               
 var anchors = document.getElementsByTagName('a');                                                                                            
                                                                                                                                              
 // loop through all anchor tags                                                                                                              
 for (var i=0; i<anchors.length; i++){                                                                                                        
 var anchor = anchors[i];                                                                                                                     
                                                                                                                                              
 var relAttribute = String(anchor.getAttribute('rel'));                                                                                       
                                                                                                                                              
 // use the string.match() method to catch 'lightbox' references in the rel attribute                                                         
 if (anchor.getAttribute('href') && (relAttribute.toLowerCase().match('lightbox'))){                                                          
 anchor.onclick = function () {myLightbox.start(this); return false;}                                                                         
 }                                                                                                                                            
 }                                                                                                                                            
                                                                                                                                              
 // The rest of this code inserts html at the bottom of the page that looks similar to this:                                                  
 //                                                                                                                                           
 // <div id="overlay"></div>                                                                                                                  
 // <div id="lightbox">                                                                                                                       
 // <div id="outerImageContainer">                                                                                                            
 // <div id="imageContainer">                                                                                                                 
 // <img id="lightboxImage">                                                                                                                  
 // <div style="" id="hoverNav">                                                                                                              
 // <a href="#" id="prevLink"></a>                                                                                                            
 // <a href="#" id="nextLink"></a>                                                                                                            
 // </div>                                                                                                                                    
 // <div id="loading">                                                                                                                        
 // <a href="#" id="loadingLink">                                                                                                             
 // <img src="images/loading.gif">                                                                                                            
 // </a>                                                                                                                                      
 // </div>                                                                                                                                    
 // </div>                                                                                                                                    
 // </div>                                                                                                                                    
 // <div id="imageDataContainer">                                                                                                             
 // <div id="imageData">                                                                                                                      
 // <div id="imageDetails">                                                                                                                   
 // <span id="caption"></span>                                                                                                                
 // <span id="numberDisplay"></span>                                                                                                          
 // </div>                                                                                                                                    
 // <div id="bottomNav">                                                                                                                      
 // <a href="#" id="bottomNavClose">                                                                                                          
 // <img src="images/close.gif">                                                                                                              
 // </a>                                                                                                                                      
 // </div>                                                                                                                                    
 // </div>                                                                                                                                    
 // </div>                                                                                                                                    
 // </div>                                                                                                                                    
                                                                                                                                              
                                                                                                                                              
 var objBody = document.getElementsByTagName("body").item(0);                                                                                 
                                                                                                                                              
 var objOverlay = document.createElement("div");                                                                                              
 objOverlay.setAttribute('id','overlay');                                                                                                     
 objOverlay.style.display = 'none';                                                                                                           
 objOverlay.onclick = function() { myLightbox.end(); return false; }                                                                          
 objBody.appendChild(objOverlay);                                                                                                             
                                                                                                                                              
 var objLightbox = document.createElement("div");                                                                                             
 objLightbox.setAttribute('id','lightbox');                                                                                                   
 objLightbox.style.display = 'none';                                                                                                          
 objBody.appendChild(objLightbox);                                                                                                            
                                                                                                                                              
 var objOuterImageContainer = document.createElement("div");                                                                                  
 objOuterImageContainer.setAttribute('id','outerImageContainer');                                                                             
 objLightbox.appendChild(objOuterImageContainer);                                                                                             
                                                                                                                                              
 var objImageContainer = document.createElement("div");                                                                                       
 objImageContainer.setAttribute('id','imageContainer');                                                                                       
 objOuterImageContainer.appendChild(objImageContainer);                                                                                       
                                                                                                                                              
 var objLightboxImage = document.createElement("img");                                                                                        
 objLightboxImage.setAttribute('id','lightboxImage');                                                                                         
 objImageContainer.appendChild(objLightboxImage);                                                                                             
                                                                                                                                              
 var objHoverNav = document.createElement("div");                                                                                             
 objHoverNav.setAttribute('id','hoverNav');                                                                                                   
 objImageContainer.appendChild(objHoverNav);                                                                                                  
                                                                                                                                              
 var objPrevLink = document.createElement("a");                                                                                               
 objPrevLink.setAttribute('id','prevLink');                                                                                                   
 objPrevLink.setAttribute('href','#');                                                                                                        
 objHoverNav.appendChild(objPrevLink);                                                                                                        
                                                                                                                                              
 var objNextLink = document.createElement("a");                                                                                               
 objNextLink.setAttribute('id','nextLink');                                                                                                   
 objNextLink.setAttribute('href','#');                                                                                                        
 objHoverNav.appendChild(objNextLink);                                                                                                        
                                                                                                                                              
 var objLoading = document.createElement("div");                                                                                              
 objLoading.setAttribute('id','loading');                                                                                                     
 objImageContainer.appendChild(objLoading);                                                                                                   
                                                                                                                                              
 var objLoadingLink = document.createElement("a");                                                                                            
 objLoadingLink.setAttribute('id','loadingLink');                                                                                             
 objLoadingLink.setAttribute('href','#');                                                                                                     
 objLoadingLink.onclick = function() { myLightbox.end(); return false; }                                                                      
 objLoading.appendChild(objLoadingLink);                                                                                                      
                                                                                                                                              
 var objLoadingImage = document.createElement("img");                                                                                         
 objLoadingImage.setAttribute('src', fileLoadingImage);                                                                                       
 objLoadingLink.appendChild(objLoadingImage);                                                                                                 
                                                                                                                                              
 var objImageDataContainer = document.createElement("div");                                                                                   
 objImageDataContainer.setAttribute('id','imageDataContainer');                                                                               
 objImageDataContainer.className = 'clearfix';                                                                                                
 objLightbox.appendChild(objImageDataContainer);                                                                                              
                                                                                                                                              
 var objImageData = document.createElement("div");                                                                                            
 objImageData.setAttribute('id','imageData');                                                                                                 
 objImageDataContainer.appendChild(objImageData);                                                                                             
                                                                                                                                              
 var objImageDetails = document.createElement("div");                                                                                         
 objImageDetails.setAttribute('id','imageDetails');                                                                                           
 objImageData.appendChild(objImageDetails);                                                                                                   
                                                                                                                                              
 var objCaption = document.createElement("span");                                                                                             
 objCaption.setAttribute('id','caption');                                                                                                     
 objImageDetails.appendChild(objCaption);                                                                                                     
                                                                                                                                              
 var objNumberDisplay = document.createElement("span");                                                                                       
 objNumberDisplay.setAttribute('id','numberDisplay');                                                                                         
 objImageDetails.appendChild(objNumberDisplay);                                                                                               
                                                                                                                                              
 var objBottomNav = document.createElement("div");                                                                                            
 objBottomNav.setAttribute('id','bottomNav');                                                                                                 
 objImageData.appendChild(objBottomNav);                                                                                                      
                                                                                                                                              
 var objBottomNavCloseLink = document.createElement("a");                                                                                     
 objBottomNavCloseLink.setAttribute('id','bottomNavClose');                                                                                   
 objBottomNavCloseLink.setAttribute('href','#');                                                                                              
 objBottomNavCloseLink.onclick = function() { myLightbox.end(); return false; }                                                               
 objBottomNav.appendChild(objBottomNavCloseLink);                                                                                             
                                                                                                                                              
 var objBottomNavCloseImage = document.createElement("img");                                                                                  
 objBottomNavCloseImage.setAttribute('src', fileBottomNavCloseImage);                                                                         
 objBottomNavCloseLink.appendChild(objBottomNavCloseImage);                                                                                   
 },                                                                                                                                           
                                                                                                                                              
 //                                                                                                                                           
 // start()                                                                                                                                   
 // Display overlay and lightbox. If image is part of a set, add siblings to imageArray.                                                      
 //                                                                                                                                           
 start: function(imageLink) {                                                                                                                 
                                                                                                                                              
 hideSelectBoxes();                                                                                                                           
                                                                                                                                              
 // stretch overlay to fill page and fade in                                                                                                  
 var arrayPageSize = getPageSize();                                                                                                           
 Element.setHeight('overlay', arrayPageSize[1]);                                                                                              
 new Effect.Appear('overlay', { duration: 0.2, from: 0.0, to: 0.8 });                                                                         
                                                                                                                                              
 imageArray = [];                                                                                                                             
 imageNum = 0;                                                                                                                                
                                                                                                                                              
 if (!document.getElementsByTagName){ return; }                                                                                               
 var anchors = document.getElementsByTagName('a');                                                                                            
                                                                                                                                              
 // if image is NOT part of a set..                                                                                                           
 if((imageLink.getAttribute('rel') == 'lightbox')){                                                                                           
 // add single image to imageArray                                                                                                            
 imageArray.push(new Array(imageLink.getAttribute('href'), imageLink.getAttribute('title')));                                                 
 } else {                                                                                                                                     
 // if image is part of a set..                                                                                                               
                                                                                                                                              
 // loop through anchors, find other images in set, and add them to imageArray                                                                
 for (var i=0; i<anchors.length; i++){                                                                                                        
 var anchor = anchors[i];                                                                                                                     
 if (anchor.getAttribute('href') && (anchor.getAttribute('rel') == imageLink.getAttribute('rel'))){                                           
 imageArray.push(new Array(anchor.getAttribute('href'), anchor.getAttribute('title')));                                                       
 }                                                                                                                                            
 }                                                                                                                                            
 imageArray.removeDuplicates();                                                                                                               
 while(imageArray[imageNum][0] != imageLink.getAttribute('href')) { imageNum++;}                                                              
 }                                                                                                                                            
                                                                                                                                              
 // calculate top offset for the lightbox and display                                                                                         
 var arrayPageSize = getPageSize();                                                                                                           
 var arrayPageScroll = getPageScroll();                                                                                                       
 var lightboxTop = arrayPageScroll[1] + (arrayPageSize[3] / 15);                                                                              
                                                                                                                                              
 Element.setTop('lightbox', lightboxTop);                                                                                                     
 Element.show('lightbox');                                                                                                                    
                                                                                                                                              
 this.changeImage(imageNum);                                                                                                                  
 },                                                                                                                                           
                                                                                                                                              
 //                                                                                                                                           
 // changeImage()                                                                                                                             
 // Hide most elements and preload image in preparation for resizing image container.                                                         
 //                                                                                                                                           
 changeImage: function(imageNum) {                                                                                                            
                                                                                                                                              
 activeImage = imageNum; // update global var                                                                                                 
                                                                                                                                              
 // hide elements during transition                                                                                                           
 Element.show('loading');                                                                                                                     
 Element.hide('lightboxImage');                                                                                                               
 Element.hide('hoverNav');                                                                                                                    
 Element.hide('prevLink');                                                                                                                    
 Element.hide('nextLink');                                                                                                                    
 Element.hide('imageDataContainer');                                                                                                          
 Element.hide('numberDisplay');                                                                                                               
                                                                                                                                              
 imgPreloader = new Image();                                                                                                                  
                                                                                                                                              
 // once image is preloaded, resize image container                                                                                           
 imgPreloader.onload=function(){                                                                                                              
 Element.setSrc('lightboxImage', imageArray[activeImage][0]);                                                                                 
 myLightbox.resizeImageContainer(imgPreloader.width, imgPreloader.height);                                                                    
 }                                                                                                                                            
 imgPreloader.src = imageArray[activeImage][0];                                                                                               
 },                                                                                                                                           
                                                                                                                                              
 //                                                                                                                                           
 // resizeImageContainer()                                                                                                                    
 //                                                                                                                                           
 resizeImageContainer: function( imgWidth, imgHeight) {                                                                                       
                                                                                                                                              
 // get current height and width                                                                                                              
 this.wCur = Element.getWidth('outerImageContainer');                                                                                         
 this.hCur = Element.getHeight('outerImageContainer');                                                                                        
                                                                                                                                              
 // scalars based on change from old to new                                                                                                   
 this.xScale = ((imgWidth + (borderSize * 2)) / this.wCur) * 100;                                                                             
 this.yScale = ((imgHeight + (borderSize * 2)) / this.hCur) * 100;                                                                            
                                                                                                                                              
 // calculate size difference between new and old image, and resize if necessary                                                              
 wDiff = (this.wCur - borderSize * 2) - imgWidth;                                                                                             
 hDiff = (this.hCur - borderSize * 2) - imgHeight;                                                                                            
                                                                                                                                              
 if(!( hDiff == 0)){ new Effect.Scale('outerImageContainer', this.yScale, {scaleX: false, duration: resizeDuration, queue: 'front'}); }       
 if(!( wDiff == 0)){ new Effect.Scale('outerImageContainer', this.xScale, {scaleY: false, delay: resizeDuration, duration: resizeDuration}); }
                                                                                                                                              
 // if new and old image are same size and no scaling transition is necessary,                                                                
 // do a quick pause to prevent image flicker.                                                                                                
 if((hDiff == 0) && (wDiff == 0)){                                                                                                            
 if (navigator.appVersion.indexOf("MSIE")!=-1){ pause(250); } else { pause(100);}                                                             
 }                                                                                                                                            
                                                                                                                                              
 Element.setHeight('prevLink', imgHeight);                                                                                                    
 Element.setHeight('nextLink', imgHeight);                                                                                                    
 Element.setWidth( 'imageDataContainer', imgWidth + (borderSize * 2));                                                                        
                                                                                                                                              
 this.showImage();                                                                                                                            
 },                                                                                                                                           
                                                                                                                                              
 //                                                                                                                                           
 // showImage()                                                                                                                               
 // Display image and begin preloading neighbors.                                                                                             
 //                                                                                                                                           
 showImage: function(){                                                                                                                       
 Element.hide('loading');                                                                                                                     
 new Effect.Appear('lightboxImage', { duration: 0.5, queue: 'end', afterFinish: function(){ myLightbox.updateDetails(); } });                 
 this.preloadNeighborImages();                                                                                                                
 },                                                                                                                                           
                                                                                                                                              
 //                                                                                                                                           
 // updateDetails()                                                                                                                           
 // Display caption, image number, and bottom nav.                                                                                            
 //                                                                                                                                           
 updateDetails: function() {                                                                                                                  
                                                                                                                                              
 Element.show('caption');                                                                                                                     
 Element.setInnerHTML( 'caption', imageArray[activeImage][1]);                                                                                
                                                                                                                                              
 // if image is part of set display 'Image x of x'                                                                                            
 if(imageArray.length > 1){                                                                                                                   
 Element.show('numberDisplay');                                                                                                               
 Element.setInnerHTML( 'numberDisplay', "Imagen " + eval(activeImage + 1) + " de " + imageArray.length);                                      
 }                                                                                                                                            
                                                                                                                                              
 new Effect.Parallel(                                                                                                                         
 [ new Effect.SlideDown( 'imageDataContainer', { sync: true, duration: resizeDuration + 0.25, from: 0.0, to: 1.0 }),                          
 new Effect.Appear('imageDataContainer', { sync: true, duration: 1.0 }) ],                                                                    
 { duration: 0.65, afterFinish: function() { myLightbox.updateNav();} }                                                                       
 );                                                                                                                                           
 },                                                                                                                                           
                                                                                                                                              
 //                                                                                                                                           
 // updateNav()                                                                                                                               
 // Display appropriate previous and next hover navigation.                                                                                   
 //                                                                                                                                           
 updateNav: function() {                                                                                                                      
                                                                                                                                              
 Element.show('hoverNav');                                                                                                                    
                                                                                                                                              
 // if not first image in set, display prev image button                                                                                      
 if(activeImage != 0){                                                                                                                        
 Element.show('prevLink');                                                                                                                    
 document.getElementById('prevLink').onclick = function() {                                                                                   
 myLightbox.changeImage(activeImage - 1); return false;                                                                                       
 }                                                                                                                                            
 }                                                                                                                                            
                                                                                                                                              
 // if not last image in set, display next image button                                                                                       
 if(activeImage != (imageArray.length - 1)){                                                                                                  
 Element.show('nextLink');                                                                                                                    
 document.getElementById('nextLink').onclick = function() {                                                                                   
 myLightbox.changeImage(activeImage + 1); return false;                                                                                       
 }                                                                                                                                            
 }                                                                                                                                            
                                                                                                                                              
 this.enableKeyboardNav();                                                                                                                    
 },                                                                                                                                           
                                                                                                                                              
 //                                                                                                                                           
 // enableKeyboardNav()                                                                                                                       
 //                                                                                                                                           
 enableKeyboardNav: function() {                                                                                                              
 document.onkeydown = this.keyboardAction;                                                                                                    
 },                                                                                                                                           
                                                                                                                                              
 //                                                                                                                                           
 // disableKeyboardNav()                                                                                                                      
 //                                                                                                                                           
 disableKeyboardNav: function() {                                                                                                             
 document.onkeydown = '';                                                                                                                     
 },                                                                                                                                           
                                                                                                                                              
 //                                                                                                                                           
 // keyboardAction()                                                                                                                          
 //                                                                                                                                           
 keyboardAction: function(e) {                                                                                                                
 if (e == null) { // ie                                                                                                                       
 keycode = event.keyCode;                                                                                                                     
 } else { // mozilla                                                                                                                          
 keycode = e.which;                                                                                                                           
 }                                                                                                                                            
                                                                                                                                              
 key = String.fromCharCode(keycode).toLowerCase();                                                                                            
                                                                                                                                              
 if((key == 'x') || (key == 'o') || (key == 'c')){ // close lightbox                                                                          
 myLightbox.end();                                                                                                                            
 } else if(key == 'p'){ // display previous image                                                                                             
 if(activeImage != 0){                                                                                                                        
 myLightbox.disableKeyboardNav();                                                                                                             
 myLightbox.changeImage(activeImage - 1);                                                                                                     
 }                                                                                                                                            
 } else if(key == 'n'){ // display next image                                                                                                 
 if(activeImage != (imageArray.length - 1)){                                                                                                  
 myLightbox.disableKeyboardNav();                                                                                                             
 myLightbox.changeImage(activeImage + 1);                                                                                                     
 }                                                                                                                                            
 }                                                                                                                                            
                                                                                                                                              
                                                                                                                                              
 },                                                                                                                                           
                                                                                                                                              
 //                                                                                                                                           
 // preloadNeighborImages()                                                                                                                   
 // Preload previous and next images.                                                                                                         
 //                                                                                                                                           
 preloadNeighborImages: function(){                                                                                                           
                                                                                                                                              
 if((imageArray.length - 1) > activeImage){                                                                                                   
 preloadNextImage = new Image();                                                                                                              
 preloadNextImage.src = imageArray[activeImage + 1][0];                                                                                       
 }                                                                                                                                            
 if(activeImage > 0){                                                                                                                         
 preloadPrevImage = new Image();                                                                                                              
 preloadPrevImage.src = imageArray[activeImage - 1][0];                                                                                       
 }                                                                                                                                            
                                                                                                                                              
 },                                                                                                                                           
                                                                                                                                              
 //                                                                                                                                           
 // end()                                                                                                                                     
 //                                                                                                                                           
 end: function() {                                                                                                                            
 this.disableKeyboardNav();                                                                                                                   
 Element.hide('lightbox');                                                                                                                    
 new Effect.Fade('overlay', { duration: 0.2});                                                                                                
 showSelectBoxes();                                                                                                                           
 }                                                                                                                                            
}                                                                                                                                             
                                                                                                                                              
// -----------------------------------------------------------------------------------                                                        
                                                                                                                                              
//                                                                                                                                            
// getPageScroll()                                                                                                                            
// Returns array with x,y page scroll values.                                                                                                 
// Core code from - quirksmode.org                                                                                                            
//                                                                                                                                            
function getPageScroll(){                                                                                                                     
                                                                                                                                              
 var yScroll;                                                                                                                                 
                                                                                                                                              
 if (self.pageYOffset) {                                                                                                                      
 yScroll = self.pageYOffset;                                                                                                                  
 } else if (document.documentElement && document.documentElement.scrollTop){ // Explorer 6 Strict                                             
 yScroll = document.documentElement.scrollTop;                                                                                                
 } else if (document.body) {// all other Explorers                                                                                            
 yScroll = document.body.scrollTop;                                                                                                           
 }                                                                                                                                            
                                                                                                                                              
 arrayPageScroll = new Array('',yScroll)                                                                                                      
 return arrayPageScroll;                                                                                                                      
}                                                                                                                                             
                                                                                                                                              
// -----------------------------------------------------------------------------------                                                        
                                                                                                                                              
//                                                                                                                                            
// getPageSize()                                                                                                                              
// Returns array with page width, height and window width, height                                                                             
// Core code from - quirksmode.org                                                                                                            
// Edit for Firefox by pHaez                                                                                                                  
//                                                                                                                                            
function getPageSize(){                                                                                                                       
                                                                                                                                              
 var xScroll, yScroll;                                                                                                                        
                                                                                                                                              
 if (window.innerHeight && window.scrollMaxY) {                                                                                               
 xScroll = document.body.scrollWidth;                                                                                                         
 yScroll = window.innerHeight + window.scrollMaxY;                                                                                            
 } else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac                                                 
 xScroll = document.body.scrollWidth;                                                                                                         
 yScroll = document.body.scrollHeight;                                                                                                        
 } else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari                                                          
 xScroll = document.body.offsetWidth;                                                                                                         
 yScroll = document.body.offsetHeight;                                                                                                        
 }                                                                                                                                            
                                                                                                                                              
 var windowWidth, windowHeight;                                                                                                               
 if (self.innerHeight) { // all except Explorer                                                                                               
 windowWidth = self.innerWidth;                                                                                                               
 windowHeight = self.innerHeight;                                                                                                             
 } else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode                                    
 windowWidth = document.documentElement.clientWidth;                                                                                          
 windowHeight = document.documentElement.clientHeight;                                                                                        
 } else if (document.body) { // other Explorers                                                                                               
 windowWidth = document.body.clientWidth;                                                                                                     
 windowHeight = document.body.clientHeight;                                                                                                   
 }                                                                                                                                            
                                                                                                                                              
 // for small pages with total height less then height of the viewport                                                                        
 if(yScroll < windowHeight){                                                                                                                  
 pageHeight = windowHeight;                                                                                                                   
 } else {                                                                                                                                     
 pageHeight = yScroll;                                                                                                                        
 }                                                                                                                                            
                                                                                                                                              
 // for small pages with total width less then width of the viewport                                                                          
 if(xScroll < windowWidth){                                                                                                                   
 pageWidth = windowWidth;                                                                                                                     
 } else {                                                                                                                                     
 pageWidth = xScroll;                                                                                                                         
 }                                                                                                                                            
                                                                                                                                              
                                                                                                                                              
 arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight)                                                                     
 return arrayPageSize;                                                                                                                        
}                                                                                                                                             
                                                                                                                                              
// -----------------------------------------------------------------------------------                                                        
                                                                                                                                              
//                                                                                                                                            
// getKey(key)                                                                                                                                
// Gets keycode. If 'x' is pressed then it hides the lightbox.                                                                                
//                                                                                                                                            
function getKey(e){                                                                                                                           
 if (e == null) { // ie                                                                                                                       
 keycode = event.keyCode;                                                                                                                     
 } else { // mozilla                                                                                                                          
 keycode = e.which;                                                                                                                           
 }                                                                                                                                            
 key = String.fromCharCode(keycode).toLowerCase();                                                                                            
                                                                                                                                              
 if(key == 'x'){                                                                                                                              
 }                                                                                                                                            
}                                                                                                                                             
                                                                                                                                              
// -----------------------------------------------------------------------------------                                                        
                                                                                                                                              
//                                                                                                                                            
// listenKey()                                                                                                                                
//                                                                                                                                            
function listenKey () { document.onkeypress = getKey; }                                                                                       
                                                                                                                                              
// ---------------------------------------------------                                                                                        
                                                                                                                                              
function showSelectBoxes(){                                                                                                                   
 selects = document.getElementsByTagName("select");                                                                                           
 for (i = 0; i != selects.length; i++) {                                                                                                      
 selects[i].style.visibility = "visible";                                                                                                     
 }                                                                                                                                            
}                                                                                                                                             
                                                                                                                                              
// ---------------------------------------------------                                                                                        
                                                                                                                                              
function hideSelectBoxes(){                                                                                                                   
 selects = document.getElementsByTagName("select");                                                                                           
 for (i = 0; i != selects.length; i++) {                                                                                                      
 selects[i].style.visibility = "hidden";                                                                                                      
 }                                                                                                                                            
}                                                                                                                                             
                                                                                                                                              
// ---------------------------------------------------                                                                                        
                                                                                                                                              
//                                                                                                                                            
// pause(numberMillis)                                                                                                                        
// Pauses code execution for specified time. Uses busy code, not good.                                                                        
// Code from http://www.faqts.com/knowledge_base/view.phtml/aid/1602                                                                          
//                                                                                                                                            
function pause(numberMillis) {                                                                                                                
 var now = new Date();                                                                                                                        
 var exitTime = now.getTime() + numberMillis;                                                                                                 
 while (true) {                                                                                                                               
 now = new Date();                                                                                                                            
 if (now.getTime() > exitTime)                                                                                                                
 return;                                                                                                                                      
 }                                                                                                                                            
}                                                                                                                                             
                                                                                                                                              
// ---------------------------------------------------                                                                                        
                                                                                                                                              
                                                                                                                                              
                                                                                                                                              
function initLightbox() { myLightbox = new Lightbox(); }                                                                                      
Event.observe(window, 'load', initLightbox, false);