/*--------------------------------------------------------------------------*/
/*	Lightbox	
*	This is a script for creating modal dialog windows (like the ones your operating
*	system uses)
*	
*/

var Lightbox = {
	/* hideAll - closes all open lightbox windows */
	hideAll: function(){
		lboxes = document.getElementsByClassName('lbox')
		lboxes.each(function(box){
				Element.hide(box)
			}
		)
		if ($('overlay')){
			Element.remove('overlay');
			}
	} 
}
Lightbox.base = Class.create();
Lightbox.base.prototype = {

	initialize: function(element, options){
		//start by hiding all lightboxes
		Lightbox.hideAll();
	
		this.element = $(element);
		this.options = Object.extend({
			lightboxClassName : 'lightbox',
			closeOnOverlayClick : false,
			externalControl : false
		}, options || {} )

		//create the overlay
		new Insertion.Before(this.element, "<div id='overlay' style='display:none;'></div>");
		
Element.addClassName(this.element, this.options.lightboxClassName)
	
		//also add a default lbox class to the lightbox div so we can find and close all lightboxes if we need to
		Element.addClassName(this.element, 'lbox')
		
		//Tip: make sure the path to the close.gif image below is correct for your setup
		closer = '<img id="close" src="images/close.gif" alt="Close" title="Close this window" />'

		//insert the closer image into the div
		new Insertion.Top(this.element, closer);
		
		Event.observe($('close'), 'click', this.hideBox.bindAsEventListener(this) );
		
		if (this.options.closeOnOverlayClick){
			Event.observe($('overlay'), 'click', this.hideBox.bindAsEventListener(this) );
		}
		if (this.options.externalControl){
			Event.observe($(this.options.externalControl), 'click', this.hideBox.bindAsEventListener(this) );
		}
				
		this.showBox();	
	},
	
	showBox : function(){
		//show the overlay
	   Element.show('overlay');

		//center the lightbox
	   this.center();
	   
	   	//show the lightbox
	   Element.show(this.element);
	   return false;
	},
	
	hideBox : function(evt){	
		//Element.removeClassName(this.element, this.options.lightboxClassName)
		Element.hide(this.element);
		//remove the overlay element from the DOM completely
		Element.hide('overlay');
		//window.location.reload();
		return false;
	},
		
	center : function(){
		var my_width  = 0;
		var my_height = 0;
		
		if ( typeof( window.innerWidth ) == 'number' ){
			my_width  = window.innerWidth;
			my_height = window.innerHeight;
		}else if ( document.documentElement && 
				 ( document.documentElement.clientWidth ||
				   document.documentElement.clientHeight ) ){
			my_width  = document.documentElement.clientWidth;
			my_height = document.documentElement.clientHeight;
		}
		else if ( document.body && 
				( document.body.clientWidth || document.body.clientHeight ) ){
			my_width  = document.body.clientWidth;
			my_height = document.body.clientHeight;
		}
		
		this.element.style.position = 'absolute';
		this.element.style.zIndex   = 99;
		this.element.style.background = 'white';
		
		var scrollY = 0;
		
		if ( document.documentElement && document.documentElement.scrollTop ){
			scrollY = document.documentElement.scrollTop;
		}else if ( document.body && document.body.scrollTop ){
			scrollY = document.body.scrollTop;
		}else if ( window.pageYOffset ){
			scrollY = window.pageYOffset;
		}else if ( window.scrollY ){
			scrollY = window.scrollY;
		}
		
		var elementDimensions = Element.getDimensions(this.element);
		
		var setX = ( my_width  - elementDimensions.width  ) / 2;
		var setY = ( my_height - elementDimensions.height ) / 2 + scrollY;
		
		setX = ( setX < 0 ) ? 0 : setX;
		setY = ( setY < 0 ) ? 0 : setY;
		
		this.element.style.left = setX + "px";
		this.element.style.top  = setY + "px";
		
	}

	
}


// -----------------------------------------------------------------------------------
//
//	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 = "images/picWindow/loading.gif";		
var fileBottomNavCloseImage = "images/picWindow/closelabel.gif";

var resizeSpeed = 5;	// 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();
	}
}