//
//
//	SWFBox v1.00 (Beta Release)
//       Mod by Justin Lyric - http://www.codefidelity.com
//	January 23rd, 2007
//
//	Original script by Lokesh Dhakar - http://www.huddletogether.com (Lightbox v2.02)	
//	Still licensed under the Creative Commons Attribution 2.5 License - http://creativecommons.org/licenses/by/2.5/
//
//	This script allows one to display embedded object into a Lightbox style window.
//
//

/*	

	Table of Contents
	-----------------
	Configuration
	Global Variables

	Extending Built-in Objects	
	- Object.extend(Element)
	- Array.prototype.removeDuplicates()
	- Array.prototype.empty()

	SWFBox Class Declaration
	- initialize()
	- start()
	- changeElement()
	- resizeElementContainer()
	- showElement()
	- updateDetails()
	- updateNav()
	- enableKeyboardNav()
	- disableKeyboardNav()
	- keyboardAction()
	- end()
	
	Miscellaneous Functions
	- getPageScroll()
	- getPageSize()
	- getKey()
	- listenKey()
	- showSelectBoxes()
	- hideSelectBoxes()
	- pause()
	- initSWFBox()
	
	Function Calls
	- addLoadEvent(initSWFBox)
	
*/	

// 
//	Configuration & Global Variables
//
var fileLoadingImage = "images/loading.gif";		
var fileBottomNavCloseImage = "images/closelabel.gif";
var resizeSpeed = 7;
var borderSize = 10;
var elementArray = new Array;
var activeElement;
if(resizeSpeed > 10){ resizeSpeed = 10;}
if(resizeSpeed < 1){ resizeSpeed = 1;}
resizeDuration = (11 - resizeSpeed) * 0.15;
//	---------------------------------------------------------------------

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;
	}
});

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();
	}
}

var SWFBox = Class.create();

SWFBox.prototype = {

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

		for (var i=0; i<anchors.length; i++){
			var anchor = anchors[i];			
			var relAttribute = String(anchor.getAttribute('rel'));
			
			if (anchor.getAttribute('href') && (relAttribute.toLowerCase().match('swfbox'))){
				anchor.onclick = function () {mySWFBox.start(this); return false;}
			}
		}

		var objBody = document.getElementsByTagName("body").item(0);
		
		var objOverlay = document.createElement("div");
		objOverlay.setAttribute('id','overlay');
		objOverlay.style.display = 'none';
		objOverlay.onclick = function() { mySWFBox.end(); return false; }
		objBody.appendChild(objOverlay);
		
		var objSWFBox = document.createElement("div");
		objSWFBox.setAttribute('id','swfbox');
		objSWFBox.style.display = 'none';
		objBody.appendChild(objSWFBox);
	
		var objOuterElementContainer = document.createElement("div");
		objOuterElementContainer.setAttribute('id','outerElementContainer');
		objSWFBox.appendChild(objOuterElementContainer);

		var objElementContainer = document.createElement("div");
		objElementContainer.setAttribute('id','elementContainer');
		objOuterElementContainer.appendChild(objElementContainer);
			
		var objHoverNav = document.createElement("div");
		objHoverNav.setAttribute('id','hoverNav');
		objElementContainer.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');
		objElementContainer.appendChild(objLoading);
	
		var objLoadingLink = document.createElement("a");
		objLoadingLink.setAttribute('id','loadingLink');
		objLoadingLink.setAttribute('href','#');
		objLoadingLink.onclick = function() { mySWFBox.end(); return false; }
		objLoading.appendChild(objLoadingLink);
	
		var objLoadingImage = document.createElement("img");
		objLoadingImage.setAttribute('src', fileLoadingImage);
		objLoadingLink.appendChild(objLoadingImage);

		var objElementDataContainer = document.createElement("div");
		objElementDataContainer.setAttribute('id','elementDataContainer');
		objElementDataContainer.className = 'clearfix';
		objSWFBox.appendChild(objElementDataContainer);

		var objElementData = document.createElement("div");
		objElementData.setAttribute('id','elementData');
		objElementDataContainer.appendChild(objElementData);
	
		var objElementDetails = document.createElement("div");
		objElementDetails.setAttribute('id','elementDetails');
		objElementData.appendChild(objElementDetails);
	
		var objCaption = document.createElement("span");
		objCaption.setAttribute('id','caption');
		objElementDetails.appendChild(objCaption);
	
		var objNumberDisplay = document.createElement("span");
		objNumberDisplay.setAttribute('id','numberDisplay');
		objElementDetails.appendChild(objNumberDisplay);
		
		var objBottomNav = document.createElement("div");
		objBottomNav.setAttribute('id','bottomNav');
		objElementData.appendChild(objBottomNav);
	
		var objBottomNavCloseLink = document.createElement("a");
		objBottomNavCloseLink.setAttribute('id','bottomNavClose');
		objBottomNavCloseLink.setAttribute('href','#');
		objBottomNavCloseLink.onclick = function() { mySWFBox.end(); return false; }
		objBottomNav.appendChild(objBottomNavCloseLink);
	
		var objBottomNavCloseImage = document.createElement("img");
		objBottomNavCloseImage.setAttribute('src', fileBottomNavCloseImage);
		objBottomNavCloseLink.appendChild(objBottomNavCloseImage);
	},
	
	start: function(objLink) {	
		hideSelectBoxes();

		var arrayPageSize = getPageSize();
		Element.setHeight('overlay', arrayPageSize[1]);
		new Effect.Appear('overlay', { duration: 0.2, from: 0.0, to: 0.8 });

		elementArray = [];
		elementNum = 0;		

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

		if((objLink.getAttribute('rel') == 'swfbox')){
			elementArray.push(new Array(objLink.getAttribute('href'), objLink.getAttribute('title'), objLink.getAttribute('width'), objLink.getAttribute('height')));			
		} else {		
			for (var i=0; i<anchors.length; i++){
				var anchor = anchors[i];
				if (anchor.getAttribute('href') && (anchor.getAttribute('rel') == objLink.getAttribute('rel'))){
					elementArray.push(new Array(anchor.getAttribute('href'), anchor.getAttribute('title'), anchor.getAttribute('width'), anchor.getAttribute('height')));
				}
			}
			elementArray.removeDuplicates();
			while(elementArray[elementNum][0] != objLink.getAttribute('href')) { elementNum++;}
		}

		var arrayPageSize = getPageSize();
		var arrayPageScroll = getPageScroll();
		var swfboxTop = arrayPageScroll[1] + (arrayPageSize[3] / 15);

		Element.setTop('swfbox', swfboxTop);
		Element.show('swfbox');
		
		this.changeElement(elementNum);
	},

	changeElement: function(elementNum) {	
		
		if (document.getElementById('swfElement') != null) {
			var removenode = document.getElementById("swfElement");
			removenode.hidden = true;
    		removenode.parentNode.removeChild(removenode);			  
		}

		activeElement = elementNum;		
		
		var objSWF = document.createElement('embed');
		objSWF.setAttribute('id','swfElement');
		objSWF.setAttribute('width',elementArray[activeElement][2]);
		objSWF.setAttribute('height',elementArray[activeElement][3]);
		
		if (elementArray[activeElement][0].indexOf('?') != -1) {
			var strQuery = elementArray[activeElement][0].split('?');	
			objSWF.setAttribute('src',strQuery[0]);
			objSWF.setAttribute('flashVars',strQuery[1]);
			if (strQuery[1].indexOf('wmode=transparent') != -1) { objSWF.setAttribute('wmode','transparent'); }
			
		}
		else { objSWF.setAttribute('src',elementArray[activeElement][0]);}


		var objContainer = document.getElementById('elementContainer');
		objContainer.appendChild(objSWF);

		Element.show('loading');
		Element.hide('swfElement');
		Element.hide('hoverNav');
		Element.hide('prevLink');
		Element.hide('nextLink');
		Element.hide('elementDataContainer');
		Element.hide('numberDisplay');		
		
		mySWFBox.resizeElementContainer(parseInt(elementArray[activeElement][2]), parseInt(elementArray[activeElement][3]))
	},

	resizeElementContainer: function(width,height) {

		this.wCur = Element.getWidth('outerElementContainer');
		this.hCur = Element.getHeight('outerElementContainer');

		this.xScale = ((width  + (borderSize * 2)) / this.wCur) * 100;
		this.yScale = ((height  + (borderSize * 2)) / this.hCur) * 100;

		wDiff = (this.wCur - borderSize * 2) - width;
		hDiff = (this.hCur - borderSize * 2) - height;

		if(!( hDiff == 0)){ new Effect.Scale('outerElementContainer', this.yScale, {scaleX: false, duration: resizeDuration, queue: 'front'}); }
		if(!( wDiff == 0)){ new Effect.Scale('outerElementContainer', this.xScale, {scaleY: false, delay: resizeDuration, duration: resizeDuration}); }

		if((hDiff == 0) && (wDiff == 0)){
			if (navigator.appVersion.indexOf("MSIE")!=-1){ pause(250); } else { pause(100);} 
		}

		Element.setHeight('prevLink', height);
		Element.setHeight('nextLink', height);
		Element.setWidth( 'elementDataContainer', width + (borderSize * 2));

		this.showElement();
	},
	
	showElement: function(){

		Element.hide('loading');
		new Effect.Appear('swfElement', { duration: 0.5, queue: 'end', afterFinish: function(){	mySWFBox.updateDetails(); } });	
	},

	updateDetails: function() {
		Element.show('caption');
		Element.setInnerHTML( 'caption', elementArray[activeElement][1]);
		
		if(elementArray.length > 1){
			Element.show('numberDisplay');
			Element.setInnerHTML( 'numberDisplay', "Movie " + eval(activeElement + 1) + " of " + elementArray.length);
		}

		new Effect.Parallel(
			[ new Effect.SlideDown( 'elementDataContainer', { sync: true, duration: resizeDuration + 0.25, from: 0.0, to: 1.0 }), 
			  new Effect.Appear('elementDataContainer', { sync: true, duration: 1.0 }) ], 
			{ duration: 0.65, afterFinish: function() { mySWFBox.updateNav();} } 
		);
	},

	updateNav: function() {

		Element.show('hoverNav');				

		if(activeElement != 0){
			Element.show('prevLink');
			document.getElementById('prevLink').onclick = function() {
				mySWFBox.changeElement(activeElement - 1); return false;
			}
		}

		if(activeElement != (elementArray.length - 1)){
			Element.show('nextLink');
			document.getElementById('nextLink').onclick = function() {
				mySWFBox.changeElement(activeElement + 1); return false;
			}
		}
		
		this.enableKeyboardNav();
	},

	enableKeyboardNav: function() {
		document.onkeydown = this.keyboardAction; 
	},

	disableKeyboardNav: function() {
		document.onkeydown = '';
	},

	keyboardAction: function(e) {
		if (e == null) { 
			keycode = event.keyCode;
		} else { 
			keycode = e.which;
		}

		key = String.fromCharCode(keycode).toLowerCase();
		
		if((key == 'x') || (key == 'o') || (key == 'c')){
			mySWFBox.end();
		} else if(key == 'p'){	
			if(activeElement != 0){
				mySWFBox.disableKeyboardNav();
				mySWFBox.changeElement(activeElement - 1);
			}
		} else if(key == 'n'){	
			if(activeElement != (elementArray.length - 1)){
				mySWFBox.disableKeyboardNav();
				mySWFBox.changeElement(activeElement + 1);
			}
		}


	},

	end: function() {
		if (document.getElementById('swfElement') != null) {
			var removenode = document.getElementById("swfElement");
			removenode.hidden = true;
    		removenode.parentNode.removeChild(removenode);			  
		}
		this.disableKeyboardNav();
		Element.hide('swfbox');
		new Effect.Fade('overlay', { duration: 0.2});
				
		showSelectBoxes();
	}
}

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;
}

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){ 
		xScroll = document.body.scrollWidth;
		yScroll = document.body.scrollHeight;
	} else { 
		xScroll = document.body.offsetWidth;
		yScroll = document.body.offsetHeight;
	}
	
	var windowWidth, windowHeight;
	if (self.innerHeight) {	
		windowWidth = self.innerWidth;
		windowHeight = self.innerHeight;
	} else if (document.documentElement && document.documentElement.clientHeight) { 
		windowWidth = document.documentElement.clientWidth;
		windowHeight = document.documentElement.clientHeight;
	} else if (document.body) { 
		windowWidth = document.body.clientWidth;
		windowHeight = document.body.clientHeight;
	}	
	
	if(yScroll < windowHeight){
		pageHeight = windowHeight;
	} else { 
		pageHeight = yScroll;
	}

	if(xScroll < windowWidth){	
		pageWidth = windowWidth;
	} else {
		pageWidth = xScroll;
	}


	arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight) 
	return arrayPageSize;
}

function getKey(e){
	if (e == null) { // ie
		keycode = event.keyCode;
	} else { // mozilla
		keycode = e.which;
	}
	key = String.fromCharCode(keycode).toLowerCase();
	
	if(key == 'x'){
	}
}

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";
	}
}

function pause(numberMillis) {
	var now = new Date();
	var exitTime = now.getTime() + numberMillis;
	while (true) {
		now = new Date();
		if (now.getTime() > exitTime)
			return;
	}
}

function initSWFBox() { mySWFBox = new SWFBox(); }
Event.observe(window, 'load', initSWFBox, false);