var fileLoadingImage = "images/loading.gif";		
var fileBottomNavCloseImage = "http://omnitesl.com/images/closelabel.gif";

var overlayOpacity = 0.8;	// controls transparency of shadow overlay

var animate = true;			// toggles resizing animations
var resizeSpeed = 5;		// controls the speed of the image resizing animations (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(animate == true){
	overlayDuration = 0.2;	// shadow fade in/out duration
	if(resizeSpeed > 10){ resizeSpeed = 10;}
	if(resizeSpeed < 1){ resizeSpeed = 1;}
	resizeDuration = (11 - resizeSpeed) * 0.15;
} else { 
	overlayDuration = 0;
	resizeDuration = 0;
}

Object.extend(Element, {
	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";
	},
	setLeft: function(element,l) {
	   	element = $(element);
    	element.style.left = l +"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;
	}
});

Array.prototype.removeDuplicates = function () {
    for(i = 0; i < this.length; i++){
        for(j = this.length-1; j>i; j--){        
            if(this[i][0] == this[j][0]){
                this.splice(j,1);
            }
        }
    }
}

Array.prototype.empty = function () {
	for(i = 0; i <= this.length; i++){
		this.shift();
	}
}

var Lightbox = Class.create();

Lightbox.prototype = {
	
    initialize: function() {			
    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(); }
            objBody.appendChild(objOverlay);

            var objLightbox = document.createElement("div");
            objLightbox.setAttribute('id','lightbox');
            objLightbox.style.display = 'none';
            objLightbox.onclick = function(e) {
                    if (!e) var e = window.event;
                    var clickObj = Event.element(e).id;
                    if ( clickObj == 'lightbox') {
                            myLightbox.end();
                    }
            };
            objBody.appendChild(objLightbox);	

    var objOuterImageContainer = document.createElement("div");
            objOuterImageContainer.setAttribute('id','outerImageContainer');
            objLightbox.appendChild(objOuterImageContainer);
            if(animate){
                    Element.setWidth('outerImageContainer', 320);
                    Element.setHeight('outerImageContainer', 240);			
            } else {
                    Element.setWidth('outerImageContainer', 1);
                    Element.setHeight('outerImageContainer', 1);			
            }

    var objImageContainer = document.createElement("div");
            objImageContainer.setAttribute('id','imageContainer');
            objOuterImageContainer.appendChild(objImageContainer);

            var objImageDataContainer = document.createElement("div");
            objImageDataContainer.setAttribute('id','imageDataContainer');
            objLightbox.appendChild(objImageDataContainer);
    if(animate){
                    Element.setWidth('imageDataContainer', 320);			
            } else {
                    Element.setWidth('imageDataContainer', 1);
                    Element.setHeight('imageDataContainer', 1);			
            }

            var objImageData = document.createElement("div");
            objImageData.setAttribute('id','imageData');
            objImageDataContainer.appendChild(objImageData);

            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: function(obj) {
        var arrayPageSize = getPageSize();
        Element.setWidth('overlay', arrayPageSize[0]);
        Element.setHeight('overlay', arrayPageSize[1]);	
        var arrayPageScroll = getPageScroll();
        var lightboxTop = arrayPageScroll[1] + (arrayPageSize[3] / 10);
        var lightboxLeft = arrayPageScroll[0];
        var ocHeight = Element.getHeight(obj);
        var ocWidth = Element.getWidth(obj);
        $('imageContainer').appendChild($(obj));
        Element.setTop('lightbox', lightboxTop);
        Element.setLeft('lightbox', lightboxLeft);
        Element.setWidth('outerImageContainer',20);
        Element.setHeight('outerImageContainer',20);
        Element.setWidth('imageDataContainer',ocWidth);
        Element.hide('imageDataContainer');
        var xScale = ( ocWidth / 20) * 100;
		var yScale = ( ocHeight / 20) * 100;
        new Effect.Appear('overlay', { duration: overlayDuration, from: 0.0, to: overlayOpacity,afterFinish: function(){
            Element.show('lightbox');
            new Effect.Parallel([        
                new Effect.Scale('outerImageContainer', yScale, {scaleX: false, duration: resizeDuration}),
                new Effect.Scale('outerImageContainer', xScale, {scaleY: false, delay: resizeDuration, duration: resizeDuration})],
                { duration: resizeDuration, afterFinish: function() {
                    Element.setWidth('imageDataContainer',Element.getWidth('outerImageContainer'));
                    new Effect.Parallel(
            			[ new Effect.SlideDown( 'imageDataContainer', { sync: true, duration: resizeDuration, from: 0.0, to: 1.0 }), 
            			  new Effect.Appear('imageDataContainer', { sync: true, duration: resizeDuration }) ], 
            			{ duration: resizeDuration, afterFinish: function() {
                                Element.show(obj);
            				}
            			} 
            		);
                }
                }
            );
        }});	
    },

    end: function() {
        var cont = $('imageContainer').firstChild;
        if ( (cont.firstChild.nodeName.toUpperCase() == 'IFRAME') && (navigator.appVersion.indexOf("MSIE")!=-1) ) {
            cont.firstChild.contentWindow.location = 'video.html_';
        }
        Element.hide('lightbox');
        new Effect.Fade('overlay', { duration: overlayDuration});        
        Element.hide(cont);
        document.getElementsByTagName("body").item(0).appendChild(cont);
        //showSelectBoxes();
        //showFlash();
    }
}

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

//
// getPageScroll()
// Returns array with x,y page scroll values.
// Core code from - quirksmode.com
//
function getPageScroll(){

	var xScroll, yScroll;

	if (self.pageYOffset) {
		yScroll = self.pageYOffset;
		xScroll = self.pageXOffset;
	} else if (document.documentElement && document.documentElement.scrollTop){	 // Explorer 6 Strict
		yScroll = document.documentElement.scrollTop;
		xScroll = document.documentElement.scrollLeft;
	} else if (document.body) {// all other Explorers
		yScroll = document.body.scrollTop;
		xScroll = document.body.scrollLeft;	
	}

	arrayPageScroll = new Array(xScroll,yScroll) 
	return arrayPageScroll;
}

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

//
// getPageSize()
// Returns array with page width, height and window width, height
// Core code from - quirksmode.com
// Edit for Firefox by pHaez
//
function getPageSize(){
	
	var xScroll, yScroll;
	
	if (window.innerHeight && window.scrollMaxY) {	
		xScroll = window.innerWidth + window.scrollMaxX;
		yScroll = window.innerHeight + window.scrollMaxY;
	} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
		xScroll = document.body.scrollWidth;
		yScroll = document.body.scrollHeight;
	} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
		xScroll = document.body.offsetWidth;
		yScroll = document.body.offsetHeight;
	}
	
	var windowWidth, windowHeight;
	
//	console.log(self.innerWidth);
//	console.log(document.documentElement.clientWidth);

	if (self.innerHeight) {	// all except Explorer
		if(document.documentElement.clientWidth){
			windowWidth = document.documentElement.clientWidth; 
		} else {
			windowWidth = self.innerWidth;
		}
		windowHeight = self.innerHeight;
	} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
		windowWidth = document.documentElement.clientWidth;
		windowHeight = document.documentElement.clientHeight;
	} else if (document.body) { // other Explorers
		windowWidth = document.body.clientWidth;
		windowHeight = document.body.clientHeight;
	}	
	
	// for small pages with total height less then height of the viewport
	if(yScroll < windowHeight){
		pageHeight = windowHeight;
	} else { 
		pageHeight = yScroll;
	}

//	console.log("xScroll " + xScroll)
//	console.log("windowWidth " + windowWidth)

	// for small pages with total width less then width of the viewport
	if(xScroll < windowWidth){	
		pageWidth = xScroll;		
	} else {
		pageWidth = windowWidth;
	}
//	console.log("pageWidth " + pageWidth)

	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(){
	var selects = document.getElementsByTagName("select");
	for (i = 0; i != selects.length; i++) {
		selects[i].style.visibility = "visible";
	}
}

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

function hideSelectBoxes(){
	var selects = document.getElementsByTagName("select");
	for (i = 0; i != selects.length; i++) {
		selects[i].style.visibility = "hidden";
	}
}

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

function showFlash(){
	var flashObjects = document.getElementsByTagName("object");
	for (i = 0; i < flashObjects.length; i++) {
		flashObjects[i].style.visibility = "visible";
	}

	var flashEmbeds = document.getElementsByTagName("embed");
	for (i = 0; i < flashEmbeds.length; i++) {
		flashEmbeds[i].style.visibility = "visible";
	}
}

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

function hideFlash(){
	var flashObjects = document.getElementsByTagName("object");
	for (i = 0; i < flashObjects.length; i++) {
		flashObjects[i].style.visibility = "hidden";
	}

	var flashEmbeds = document.getElementsByTagName("embed");
	for (i = 0; i < flashEmbeds.length; i++) {
		flashEmbeds[i].style.visibility = "hidden";
	}

}


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

//
// pause(numberMillis)
// Pauses code execution for specified time. Uses busy code, not good.
// Help from Ran Bar-On [ran2103@gmail.com]
//

function pause(ms){
	var date = new Date();
	curDate = null;
	do{var curDate = new Date();}
	while( curDate - date < ms);
}
/*
function pause(numberMillis) {
	var curently = new Date().getTime() + sender;
	while (new Date().getTime();	
}
*/
// ---------------------------------------------------



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