// -----------------------------------------------------------------------------------
//
//	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()
		- enableKeyboardNav()
	- disableKeyboardNav()
	- keyboardAction()
	- preloadNeighborImages()
	- end()
	
	Miscellaneous Functions
	- getPageScroll()
	- getPageSize()
	- showSelectBoxes()
	- hideSelectBoxes()
	- pause()
	- initLightbox()
	
	Function Calls
	- addLoadEvent(initLightbox)
	
*/
// -----------------------------------------------------------------------------------

//
//	Configuration
//
var fileLoadingImage = global_generic_images_url + 'Formbox/loading.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('formbox'))){
				anchor.onclick = function () { return false }
        Event.observe(anchor,'click',function (ev) {
          if(Event.element(ev) != location.href) { myLightbox.start(Event.element(ev)); }
        return false},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">
		//				<div id="lightboxForm">
		//        </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="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','formbox');
		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 objLightboxForm = document.createElement("div");
		objLightboxForm.setAttribute('id','lightboxForm');
		objImageContainer.appendChild(objLightboxForm);

		var objLightboxFormIframe = document.createElement("iframe");
		objLightboxFormIframe.setAttribute('name','lightboxFormIframe');
		objLightboxFormIframe.setAttribute("width","100%");
		objLightboxFormIframe.setAttribute('hspace','0');
		objLightboxFormIframe.setAttribute('vspace','0');
		objLightboxFormIframe.setAttribute('marginheight','0');
		objLightboxFormIframe.setAttribute('marginwidth','0');
		objLightboxFormIframe.setAttribute("frameborder","0");
		if (navigator.appVersion.indexOf("MSIE 6.0")!=-1) objLightboxFormIframe.setAttribute("scrolling","yes");
		objLightboxFormIframe.setAttribute('border','0');
        objLightboxFormIframe.setAttribute("id","lightboxFormIframe");
        objLightboxFormIframe.setAttribute('allowtransparency','true');

		//objLightboxFormIframe.setAttribute('src',imageLink.getAttribute('href'));
		objLightboxForm.appendChild(objLightboxFormIframe);
		

        
		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 objBottomNav = document.createElement("div");
		objBottomNav.setAttribute('id','bottomNav');
		objImageData.appendChild(objBottomNav);

        /* creando el elemento submit */
		var objBottomNavSubmitLink = document.createElement("a");
		objBottomNavSubmitLink.setAttribute('id','bottomNavSubmit');
        objBottomNavSubmitLink.setAttribute('style','float: right;');
        objBottomNavSubmitLink.setAttribute('class','button');
		objBottomNavSubmitLink.setAttribute('href','javascript:void(0);');
        
        Event.observe(objBottomNavSubmitLink, 'click', submitForm, false);
        
		objBottomNav.appendChild(objBottomNavSubmitLink);      

        var objBottomNavSubmitImage = document.createElement("span");
        objBottomNavSubmitImage.innerHTML = '<span class="button-left"></span><span id="buttom_caption" class="button-text lowercase"></span><span class="button-right"></span>';
        objBottomNavSubmitImage.setAttribute('id','objBottomNavSubmitImage');
        objBottomNavSubmitLink.appendChild(objBottomNavSubmitImage);
        
        /* creando el elemento cancel */
		var objBottomNavCloseLink = document.createElement("a");
		objBottomNavCloseLink.setAttribute('id','bottomNavClose');        
        objBottomNavCloseLink.setAttribute('style','float: right;');
        objBottomNavCloseLink.setAttribute('class','button');         
		objBottomNavCloseLink.setAttribute('href','javascript:void(0);');
		objBottomNavCloseLink.onclick = function() { myLightbox.end(); return false; }
		objBottomNav.appendChild(objBottomNavCloseLink);

        var objBottomNavCloseImage = document.createElement("span");
        objBottomNavCloseImage.innerHTML = '<span class="button-left"></span><span class="button-text lowercase">cerrar</span><span class="button-right"></span>';
        objBottomNavCloseImage.setAttribute('title','cerrar');
		objBottomNavCloseLink.appendChild(objBottomNavCloseImage);
	},

	//
	//	start()
	//	Display overlay and lightbox. If image is part of a set, add siblings to imageArray.
	//
	start: function(imageLink) {	

		hideSelectBoxes();
		hideFlashContent();

		// 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 });

		if (!document.getElementsByTagName){ return; }
		var anchors = document.getElementsByTagName('a');

        ajaxLink = imageLink.getAttribute('href');
    
		// calculate top offset for the lightbox and display 
		var arrayPageSize = getPageSize();
		var arrayPageScroll = getPageScroll();
		var lightboxTop = arrayPageScroll[1] + (arrayPageSize[3] / 15);

		Element.setTop('formbox', lightboxTop);
		Element.show('formbox');
		
		// resize nuestro
		Element.show('loading');

		Element.hide('lightboxForm');
		Element.hide('imageDataContainer');
    
        // defino ancho y alto
        var imageRel = imageLink.getAttribute('rel');
        var inicio = imageRel.indexOf('[')+1;
        var fin = imageRel.indexOf(']', inicio);
        
        sArguments = imageRel.substring(inicio,fin);
        aArguments = sArguments.split(',');         
                
        if(aArguments.length == 2) {
            $('bottomNavSubmit').style.visibility = "hidden";
            $('bottomNavSubmit').style.display = "none";
            
            width = aArguments[0];
            height = aArguments[1];
        } else {
            sButtomCaption = aArguments[0];       
            width = aArguments[1];
            height = aArguments[2];
            
            $('buttom_caption').innerHTML = sButtomCaption;
            $('objBottomNavSubmitImage').setAttribute('title', sButtomCaption);
            $('bottomNavSubmit').style.visibility = "visible";
            $('bottomNavSubmit').style.display = "block";
        }
        
        $('lightboxFormIframe').setAttribute('src', ajaxLink);
        $('lightboxFormIframe').setAttribute('height', parseFloat(height));

        // esto es para el iframe   
        myLightbox.resizeDivContainer(parseFloat(width), parseFloat(height));
	},
	//
	//	resizeDivContainer()
	//
	resizeDivContainer: 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.setWidth( 'imageDataContainer', imgWidth + (borderSize * 2));
    
        if( navigator.userAgent.indexOf("Safari")>-1 ) {this.showForm();}
        else {Event.observe($('lightboxFormIframe'),'load', this.showForm);}
		
	},
	
	//
	//	showImage()
	//	Display image and begin preloading neighbors.
	//
	showForm: function(){
		Element.hide('loading');
		new Effect.Appear('lightboxForm', { duration: 0.5, queue: 'end', afterFinish: function(){	myLightbox.updateDetails(); } });
	},

	//
	//	updateDetails()
	//	Display form
	//
	updateDetails: function() {

		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 } 
		);
	},


	//
	//	end()
	//
	end: function() {
		Element.hide('formbox');
		new Effect.Fade('overlay', { duration: 0.2});
		showSelectBoxes();
		showFlashContent();
	},
	
	reloadPage: function() {
		PageReload();
	}
	
}

/*var ajaxOptions = {
    method: 'post',
    onSuccess: function(t) {
        $('lightboxForm').innerHTML = t.responseText;
        myLightbox.resizeDivContainer(parseFloat(medidas[0]), parseFloat(medidas[1]));
    },
    // Handle 404
    on404: function(t) {
        alert('Error 404: location "' + t.statusText + '" was not found.');
    },
    // Handle other errors
    onFailure: function(t) {
        alert('Error ' + t.status + ' -- ' + t.statusText);
    }
}*/

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

//
// 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++) {
        if(selects[i].className!= 'scwHead'){
          selects[i].style.visibility = "visible";
        }
	}
    if(document.getElementById('player')) $('player').style.visibility = "visible";
}

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

function hideSelectBoxes(){
	selects = document.getElementsByTagName("select");
	for (i = 0; i != selects.length; i++) {
	 if(selects[i].className!= 'scwHead'){
		selects[i].style.visibility = "hidden";
	 }
	}
	if(document.getElementById('player')) $('player').style.visibility = "hidden";
}

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

function showFlashContent(){ 
	objects = document.getElementsByTagName("object");
	for (i = 0; i != objects.length; i++) {
    objects[i].style.visibility = "visible";
	}
}

function hideFlashContent(){ 
	objects = document.getElementsByTagName("object");
	for (i = 0; i != objects.length; i++) {
    objects[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 blah(resp){
  $('lightboxForm').innerHTML = resp;
}

function submitForm() { 
  window.frames['lightboxFormIframe'].document.forms[0].submit();
}
// ---------------------------------------------------

function initLightbox() { myLightbox = new Lightbox(); }
Event.observe(window, 'load', initLightbox, false);