// -----------------------------------------------------------------------------------
//
//	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)
	
	Lightbox Class Declaration
	- initialize()
	- start()
	- afficheFlash()
	- updateDetails()
	- end()
	
	Miscellaneous Functions
	- getPageScroll()
	- getPageSize()
	- showSelectBoxes()
	- hideSelectBoxes()
	- initLightbox()
	
	
*/
// -----------------------------------------------------------------------------------

//
//	Global Variables
//

var resizeSpeed = 7;	// controls the speed of the image resizing (1=slowest and 10=fastest)
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;
	}
});

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

//
//	Lightbox Class Declaration
//	- initialize()
//	- start()
//	- updateDetails()
//	- end()
//
//	Structuring of code inspired by Scott Upton (http://www.uptonic.com/)
//
var Lightbox = Class.create();

Lightbox.prototype = {
	
	// Constructor runs on completion of the DOM loading. 
	// Set les variables 
	// background = couleur de l'overlay
	// flash = contenu de l'overlay
	// width = largeur du flash
	// height = hauteur du flash
	// flashColor = couleur de fond du flash 
	// dataColor = couleur du div imageDataContainer
	
	initialize: function(background, flash, width, height, flashColor, dataColor) {	

		// 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">
		//			</div>
		//		</div>
		//		<div id="imageDataContainer">
		//			<div id="skipIntro">
		//				<a href="#" class="closeLink">
		//					Passer l'intro
		//				</a>
		//			</div>
		//		</div>
		//	</div>
		this.backGroundColor = background;
		this.flashName = flash;
		this.flashWidth = width;
		this.flashHeight = height;
		this.flashBackGroundColor = flashColor;
		this.dataContainerColor = dataColor;

		var objBody = document.getElementsByTagName("body").item(0);
		
		var objOverlay = document.createElement("div");
		objOverlay.setAttribute('id','overlay');
		objOverlay.style.display = 'none';
		objOverlay.style.background = this.backGroundColor;
		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');
		objOuterImageContainer.style.width = this.flashWidth+"px";
		objOuterImageContainer.style.height = this.flashHeight+"px";
		objLightbox.appendChild(objOuterImageContainer);

		var objImageContainer = document.createElement("div");
		objImageContainer.setAttribute('id','imageContainer');
		objImageContainer.style.display = 'none';
		objOuterImageContainer.appendChild(objImageContainer);
	
		var objImageDataContainer = document.createElement("div");
		objImageDataContainer.setAttribute('id','imageDataContainer');
		objImageDataContainer.className = 'clearfix';
		objImageDataContainer.style.width = this.flashWidth+"px";
		objImageDataContainer.style.background = this.dataContainerColor;
		objImageDataContainer.style.display = 'none';
		objLightbox.appendChild(objImageDataContainer);

		var objImageData = document.createElement("div");
		objImageData.setAttribute('id','skipIntro');
		objImageDataContainer.appendChild(objImageData);
		
		var objBottomNavCloseLink = document.createElement("a");
		objBottomNavCloseLink.setAttribute('href','#');
		objBottomNavCloseLink.className = 'closeLink';
		objBottomNavCloseLink.onclick = function() { myLightbox.end(); return false; }
		objBottomNavCloseLink.innerHTML = "Passer l'intro";
		objImageData.appendChild(objBottomNavCloseLink);
		
		
		
		
		this.start();
	},
	
	//
	//	start()
	//	Display overlay and lightbox.
	//
	start: function(imageLink) {	
		//hide select form
		hideSelectBoxes();

		// stretch overlay to fill page and fade in
		var arrayPageSize = getPageSize();
		Element.setHeight('overlay', arrayPageSize[1]);
		new Effect.Appear('overlay', { duration: 0.8, from: 0.0, to: 0.8 });

		if (!document.getElementsByTagName){ return; }
		
		// 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.afficheFlash();
	},

	//
	// afficheFlash()
	// affiche le flash
	//
	afficheFlash: function() {
		var so = new SWFObject(this.flashName,"anim-flash", this.flashWidth, this.flashHeight, "7", this.flashBackGroundColor);
		so.addParam("wmode", "transparent");
		so.addParam("loop","true");
		so.write("imageContainer");
		Element.show('imageContainer');
		this.updateDetails();
	},

	//
	//	updateDetails()
	//	Display caption, image number, and bottom nav.
	//
	updateDetails: function() {
		//Element.update("skipIntro","<a href=\"#\" onclick=\"myLightbox.end()\">Passer l'intro</a>");

		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() { } } 
		);
	},

	//
	//	end()
	//
	end: function() {
		Element.show('container');
		Element.setStyle('content-index',{backgroundColor:'#FFFFFF'});
		Element.hide('lightbox');
		new Effect.Fade('overlay', { duration: 0.8});
		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;
}


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

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";
	}
}

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




function initLightbox(backGroundColor, flashName, flashWidth, flashHeight, flashColor, dataContainerColor) { 
	myLightbox = new Lightbox(backGroundColor, flashName, flashWidth, flashHeight, flashColor, dataContainerColor); 
}