// -----------------------------------------------------------------------------------
//
//	Lightbox v2.03.3
//	by Lokesh Dhakar - http://www.huddletogether.com
//	5/21/06
//
//	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.com), 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()
	- updateImageList()
	- start()
	- changeImage()
	- resizeImageContainer()
	- showImage()
	- updateDetails()
	- updateNav()
	- enableKeyboardNav()
	- disableKeyboardNav()
	- keyboardAction()
	- preloadNeighborImages()
	- end()
	
	Miscellaneous Functions
	- getPageScroll()
	- getPageSize()
	- getKey()
	- listenKey()
	- showSelectBoxes()
	- hideSelectBoxes()
	- showFlash()
	- hideFlash()
	- pause()
	- initLightbox()
	
	Function Calls
	- addLoadEvent(initLightbox)
	
*/
// -----------------------------------------------------------------------------------

//
//	Configuration
//
var fileLoadingImage = "/images/common/lightbox/loading.gif";		
var fileBottomNavCloseImage = "/images/common/lightbox/closelabel.gif";

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

var animate = true;			// toggles resizing animations
var resizeSpeed = 7;		// 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;
}

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

//
//	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";
	},
	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;
	}
});

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

//
//	Extending built-in Array object
//	- array.removeDuplicates()
//	- array.empty()
//
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();
	}
}

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

//
//	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. Calls updateImageList and then
	// the function inserts html at the bottom of the page which is used to display the shadow 
	// overlay and the image container.
	//
	initialize: function() {	
		
		this.updateImageList();

		// 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">
		//				<img id="lightboxImage">
		//				<div style="" id="hoverNav">
		//					<a href="#" id="prevLink"></a>
		//					<a href="#" id="nextLink"></a>
		//				</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="imageDetails">
		//					<span id="caption"></span>
		//					<span id="numberDisplay"></span>
		//				</div>
		//				<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(); }
		objBody.appendChild(objOverlay);
		
		var objLightbox = document.createElement("div");
		objLightbox.setAttribute('id','lightbox');
		objLightbox.style.display = 'none';
		objLightbox.onclick = function(e) {	// close Lightbox is user clicks shadow overlay
			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);

		// When Lightbox starts it will resize itself from 250 by 250 to the current image dimension.
		// If animations are turned off, it will be hidden as to prevent a flicker of a
		// white 250 by 250 box.
		if(animate){
			Element.setWidth('outerImageContainer', 250);
			Element.setHeight('outerImageContainer', 250);			
		} else {
			Element.setWidth('outerImageContainer', 1);
			Element.setHeight('outerImageContainer', 1);			
		}

		var objImageContainer = document.createElement("div");
		objImageContainer.setAttribute('id','imageContainer');
		objOuterImageContainer.appendChild(objImageContainer);
	
		var objLightboxImage = document.createElement("img");
		objLightboxImage.setAttribute('id','lightboxImage');
		objImageContainer.appendChild(objLightboxImage);
	
		var objHoverNav = document.createElement("div");
		objHoverNav.setAttribute('id','hoverNav');
		objImageContainer.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');
		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');
		objLightbox.appendChild(objImageDataContainer);

		var objImageData = document.createElement("div");
		objImageData.setAttribute('id','imageData');
		objImageDataContainer.appendChild(objImageData);
	
		var objImageDetails = document.createElement("div");
		objImageDetails.setAttribute('id','imageDetails');
		objImageData.appendChild(objImageDetails);
	
		var objCaption = document.createElement("span");
		objCaption.setAttribute('id','caption');
		objImageDetails.appendChild(objCaption);
	
		var objNumberDisplay = document.createElement("span");
		objNumberDisplay.setAttribute('id','numberDisplay');
		objImageDetails.appendChild(objNumberDisplay);
		
		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);
	},


	//
	// updateImageList()
	// Loops through anchor tags looking for 'lightbox' references and applies onclick
	// events to appropriate links. You can rerun after dynamically adding images w/ajax.
	//
	updateImageList: function() {	
		if (!document.getElementsByTagName){ return; }
		var anchors = document.getElementsByTagName('a');
		var areas = document.getElementsByTagName('area');

		// 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('lightbox'))){
				anchor.onclick = function () {myLightbox.start(this); return false;}
			}
		}

		// loop through all area tags
		// todo: combine anchor & area tag loops
		for (var i=0; i< areas.length; i++){
			var area = areas[i];
			
			var relAttribute = String(area.getAttribute('rel'));
			
			// use the string.match() method to catch 'lightbox' references in the rel attribute
			if (area.getAttribute('href') && (relAttribute.toLowerCase().match('lightbox'))){
				area.onclick = function () {myLightbox.start(this); return false;}
			}
		}
	},
	
	
	//
	//	start()
	//	Display overlay and lightbox. If image is part of a set, add siblings to imageArray.
	//
	start: function(imageLink) {	

		hideSelectBoxes();
		hideFlash();

		// stretch overlay to fill page and fade in
		var arrayPageSize = getPageSize();
		Element.setWidth('overlay', arrayPageSize[0]);
		Element.setHeight('overlay', arrayPageSize[1]);

		new Effect.Appear('overlay', { duration: overlayDuration, from: 0.0, to: overlayOpacity });

		imageArray = [];
		imageNum = 0;		

		if (!document.getElementsByTagName){ return; }
		var anchors = document.getElementsByTagName( imageLink.tagName);

		// if image is NOT part of a set..
		if((imageLink.getAttribute('rel') == 'lightbox')){
			// add single image to imageArray
			imageArray.push(new Array(imageLink.getAttribute('href'), imageLink.getAttribute('title')));			
		} else {
		// if image is part of a set..

			// loop through anchors, find other images in set, and add them to imageArray
			for (var i=0; i<anchors.length; i++){
				var anchor = anchors[i];
				if (anchor.getAttribute('href') && (anchor.getAttribute('rel') == imageLink.getAttribute('rel'))){
					imageArray.push(new Array(anchor.getAttribute('href'), anchor.getAttribute('title')));
				}
			}
			imageArray.removeDuplicates();
			while(imageArray[imageNum][0] != imageLink.getAttribute('href')) { imageNum++;}
		}

		// calculate top and left offset for the lightbox 
		var arrayPageScroll = getPageScroll();
		var lightboxTop = arrayPageScroll[1] + (arrayPageSize[3] / 10);
		var lightboxLeft = arrayPageScroll[0];
		Element.setTop('lightbox', lightboxTop);
		Element.setLeft('lightbox', lightboxLeft);
		
		Element.show('lightbox');
		
		this.changeImage(imageNum);
	},

	//
	//	changeImage()
	//	Hide most elements and preload image in preparation for resizing image container.
	//
	changeImage: function(imageNum) {	
		
		activeImage = imageNum;	// update global var

		// hide elements during transition
		if(animate){ Element.show('loading');}
		Element.hide('lightboxImage');
		Element.hide('hoverNav');
		Element.hide('prevLink');
		Element.hide('nextLink');
		Element.hide('imageDataContainer');
		Element.hide('numberDisplay');		
		
		imgPreloader = new Image();
		
		// once image is preloaded, resize image container
		imgPreloader.onload=function(){
			Element.setSrc('lightboxImage', imageArray[activeImage][0]);
			myLightbox.resizeImageContainer(imgPreloader.width, imgPreloader.height);
			
			imgPreloader.onload=function(){};	//	clear onLoad, IE behaves irratically with animated gifs otherwise 
		}
		imgPreloader.src = imageArray[activeImage][0];
	},

	//
	//	resizeImageContainer()
	//
	resizeImageContainer: function( imgWidth, imgHeight) {

		// get curren width and height
		this.widthCurrent = Element.getWidth('outerImageContainer');
		this.heightCurrent = Element.getHeight('outerImageContainer');

		// get new width and height
		var widthNew = (imgWidth  + (borderSize * 2));
		var heightNew = (imgHeight  + (borderSize * 2));

		// scalars based on change from old to new
		this.xScale = ( widthNew / this.widthCurrent) * 100;
		this.yScale = ( heightNew / this.heightCurrent) * 100;

		// calculate size difference between new and old image, and resize if necessary
		wDiff = this.widthCurrent - widthNew;
		hDiff = this.heightCurrent - heightNew;

		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.setHeight('prevLink', imgHeight);
		Element.setHeight('nextLink', imgHeight);
		Element.setWidth( 'imageDataContainer', widthNew);

		this.showImage();
	},
	
	//
	//	showImage()
	//	Display image and begin preloading neighbors.
	//
	showImage: function(){
		Element.hide('loading');
		new Effect.Appear('lightboxImage', { duration: resizeDuration, queue: 'end', afterFinish: function(){	myLightbox.updateDetails(); } });
		this.preloadNeighborImages();
	},

	//
	//	updateDetails()
	//	Display caption, image number, and bottom nav.
	//
	updateDetails: function() {
	
		// if caption is not null
		if(imageArray[activeImage][1]){
			Element.show('caption');
			Element.setInnerHTML( 'caption', imageArray[activeImage][1]);
		}
		
		// if image is part of set display 'Image x of x' 
		if(imageArray.length > 1){
			Element.show('numberDisplay');
			Element.setInnerHTML( 'numberDisplay', "Image " + eval(activeImage + 1) + " of " + imageArray.length);
		}

		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() {
				// update overlay size and update nav
				var arrayPageSize = getPageSize();
				Element.setHeight('overlay', arrayPageSize[1]);
				myLightbox.updateNav();
				}
			} 
		);
	},

	//
	//	updateNav()
	//	Display appropriate previous and next hover navigation.
	//
	updateNav: function() {

		Element.show('hoverNav');				

		// if not first image in set, display prev image button
		if(activeImage != 0){
			Element.show('prevLink');
			document.getElementById('prevLink').onclick = function() {
				myLightbox.changeImage(activeImage - 1); return false;
			}
		}

		// if not last image in set, display next image button
		if(activeImage != (imageArray.length - 1)){
			Element.show('nextLink');
			document.getElementById('nextLink').onclick = function() {
				myLightbox.changeImage(activeImage + 1); return false;
			}
		}
		
		this.enableKeyboardNav();
	},

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

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

	//
	//	keyboardAction()
	//
	keyboardAction: function(e) {
		if (e == null) { // ie
			keycode = event.keyCode;
			escapeKey = 27;
		} else { // mozilla
			keycode = e.keyCode;
			escapeKey = e.DOM_VK_ESCAPE;
		}

		key = String.fromCharCode(keycode).toLowerCase();
		
		if((key == 'x') || (key == 'o') || (key == 'c') || (keycode == escapeKey)){	// close lightbox
			myLightbox.end();
		} else if((key == 'p') || (keycode == 37)){	// display previous image
			if(activeImage != 0){
				myLightbox.disableKeyboardNav();
				myLightbox.changeImage(activeImage - 1);
			}
		} else if((key == 'n') || (keycode == 39)){	// display next image
			if(activeImage != (imageArray.length - 1)){
				myLightbox.disableKeyboardNav();
				myLightbox.changeImage(activeImage + 1);
			}
		}

	},

	//
	//	preloadNeighborImages()
	//	Preload previous and next images.
	//
	preloadNeighborImages: function(){

		if((imageArray.length - 1) > activeImage){
			preloadNextImage = new Image();
			preloadNextImage.src = imageArray[activeImage + 1][0];
		}
		if(activeImage > 0){
			preloadPrevImage = new Image();
			preloadPrevImage.src = imageArray[activeImage - 1][0];
		}
	
	},

	//
	//	end()
	//
	end: function() {
		this.disableKeyboardNav();
		Element.hide('lightbox');
		new Effect.Fade('overlay', { duration: overlayDuration});
		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;
	

	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);

/* Simple Accordion Script 
 * Requires Prototype and Script.aculo.us Libraries
 * By: Brian Crescimanno <brian.crescimanno@gmail.com>
 * http://briancrescimanno.com
 * This work is licensed under the Creative Commons Attribution-Share Alike 3.0
 * http://creativecommons.org/licenses/by-sa/3.0/us/
 */

if (typeof Effect == 'undefined')
  throw("You must have the script.aculo.us library to use this accordion");

var Accordion = Class.create({

    initialize: function(id, defaultExpandedCount) {
    
        if(!$(id)) throw("Attempted to initalize accordion with id: "+ id + " which was not found.");
        this.accordion = $(id);
        this.options = {
            toggleClass: "accordion-toggle",
            toggleActive: "accordion-toggle-active",
            contentClass: "accordion-content"
        }
        this.contents = this.accordion.select('li.'+this.options.contentClass);
        this.isAnimating = false;
        this.maxHeight = 0;
        this.current = defaultExpandedCount ? this.contents[defaultExpandedCount-1] : this.contents[0];
        this.defaultExpandedCount = defaultExpandedCount; // jlb, close all if defaultExpandedCount is 0.
        this.toExpand = null;

        this.checkMaxHeight();
        this.initialHide();
        //this.attachInitialMaxHeight();

        var clickHandler =  this.clickHandler.bindAsEventListener(this);
        this.accordion.observe('mouseover', clickHandler);
    },

    expand: function(el) {
        this.toExpand = el.next('li.'+this.options.contentClass);
        if(this.current != this.toExpand){
		this.toExpand.show();
		this.animate();
        }
    },

    checkMaxHeight: function() {
        for(var i=0; i<this.contents.length; i++) {
            if(this.contents[i].getHeight() > this.maxHeight) {
                this.maxHeight = this.contents[i].getHeight();
            }
        }
    },

    attachInitialMaxHeight: function() {
		this.current.previous('li.'+this.options.toggleClass).addClassName(this.options.toggleActive);
        if(this.current.getHeight() != this.maxHeight) this.current.setStyle({height: this.maxHeight+"px"});
    },

    clickHandler: function(e) {
        var el = e.element();
        if(el.hasClassName(this.options.toggleClass) && !this.isAnimating) {
	    //jlb toggle arrows
	    var ar1 = this.accordion.select('img.ar1');
	    for(j=0;j<ar1.length;j++) {
		ar1[j].src = '/images/common/arrow.gif';
	    }
	    var r = el.childElements();
	    r[0].src = '/images/common/arrow_down.gif';
	    // end toggle arrows
            this.expand(el);
        }
    },

    initialHide: function(){
        
        for(var i=0; i<this.contents.length; i++){
            if(this.contents[i] != this.current || this.defaultExpandedCount == 0) {
                this.contents[i].hide();
                this.contents[i].setStyle({height: 0});
            }
        }
    },

    animate: function() {
        var effects = new Array();
    
        var options = {
            sync: true,
            scaleFrom: 0,
            scaleContent: false,
            transition: Effect.Transitions.sinoidal,
            scaleMode: {
                originalHeight: this.maxHeight,
                originalWidth: this.accordion.getWidth()
            },
            scaleX: false,
            scaleY: true
        };

        effects.push(new Effect.Scale(this.toExpand, 100, options));

        options = {
            sync: true,
            scaleContent: false,
            transition: Effect.Transitions.sinoidal,
            scaleX: false,
            scaleY: true
        };

        effects.push(new Effect.Scale(this.current, 0, options));

        var myDuration = 0.75;

        new Effect.Parallel(effects, {
            duration: myDuration,
            fps: 35,
            queue: {
                position: 'end',
                scope: 'accordion'
            },
            beforeStart: function() {
                this.isAnimating = true;
                this.current.previous('li.'+this.options.toggleClass).removeClassName(this.options.toggleActive);
                this.toExpand.previous('li.'+this.options.toggleClass).addClassName(this.options.toggleActive);
            }.bind(this),
            afterFinish: function() {
                this.current.hide();
                this.toExpand.setStyle({ height: this.maxHeight+"px" });
                this.current = this.toExpand;
                this.isAnimating = false;
            }.bind(this)
        });
    }

});


/*** this file contains the former hp_slideshow.js and menu2.js ***/
/***
*  homepage slideshow
***/
var APCON = {};
APCON.isFading = false; //used to disable buttons during fade

	
var slideShowInit = function(thereAreButtons,sIFR){
	var i;
	var i1;
	var el;
	var btn;
	APCON.thereAreButtons = thereAreButtons;

	if(sIFR === undefined){
		APCON.sIFR = false;
	}else{
		APCON.sIFR = sIFR;
	}
	APCON.lf = 0;
	var buttonWidth = 20;
	APCON.buttons = new Array();
	APCON.buttonsOn = new Array();
	
	if(typeof $('slideshow-content') == 'undefined' ||$('slideshow-content')==null){
		return;
	}
	
	APCON.slides = $('slideshow-content').select('div.isSlide');
	APCON.max = APCON.slides.length - 1;
	
	// set ids
	for(i=0;i<APCON.slides.length;i++){
		i1 = i+1;
		APCON.slides[i].id = 'slide'+i1;
	}

	if(APCON.thereAreButtons){
		
		//button containers
		el = document.createElement('div');
		el.id = 'slideshowButtons';
		$('slideshow-content').appendChild(el);
		
		el = document.createElement('div');
		el.id = 'slideshowButtonsOn';
		$('slideshow-content').appendChild(el);		
		
		//left button
		el = document.createElement('img');
		el.className = 'bl';
		el.id = 'btl';
		el.src = '/images/common/btgray_left.gif';
		el.onclick = new Function("slideChange('back')");
		el.onmouseover = function(){$('btl').src='/images/common/btblue_left.gif';document.body.style.cursor = 'pointer';};
		el.onmouseout = function(){$('btl').src='/images/common/btgray_left.gif';document.body.style.cursor = 'default';};
		$('slideshowButtons').appendChild(el);
		
		//slide buttons
		for(i=0;i<APCON.slides.length;i++){
			i1 = i+1;
			APCON.lf += buttonWidth;
			APCON.slides[i].cleanWhitespace();
			
			btn = makeButton(i,'bb','bt','btgray');
			APCON.buttons[i] = btn.id;
			$('slideshowButtons').appendChild(btn);
		
			btn = makeButton(i,'bo','bto','btblue');
			APCON.buttonsOn[i] = btn.id;
			$('slideshowButtonsOn').appendChild(btn);
			
		}
		
		//right button
		el = document.createElement('img');
		el.className = 'br';
		el.id = 'btr';
		el.src = '/images/common/btgray_right.gif';
		APCON.lf += buttonWidth;
		el.style.left = APCON.lf + 'px';
		el.onclick = new Function("slideChange('forward')");
		el.onmouseover = function(){$('btr').src='/images/common/btblue_right.gif';document.body.style.cursor = 'pointer';};
		el.onmouseout = function(){$('btr').src='/images/common/btgray_right.gif';document.body.style.cursor = 'default';};
		$('slideshowButtons').appendChild(el);
		
		$(APCON.buttons[0]).hide();
		$(APCON.buttonsOn[0]).show();

	}

	var slideshowText = $('slideshow-content').select('p.inSlideTextHide');

	//move text off the screen if we're doing sIFR
	//move inside slides off screen instead of hiding, so sIFR will work
	//if we're not doing sIFR, hide all except first slide
	if(APCON.sIFR){
		for(var i=0;i<APCON.max;i++){
			APCON.slides[i+1].style.top="-1000px";
			if(slideshowText.length>0){
				slideshowText[i].removeClassName('inSlideTextHide');
				slideshowText[i].addClassName('inSlideText');
			}
		}
	} else {
		for(var i=0;i<APCON.max;i++){
			$(APCON.slides[i+1].id).hide();
		}
	}
	
	APCON.i = 0;
	APCON.wait = 7000;
	start_slideshow();
};

var makeButton = function(i0,cls,id,imgname){
	var i1 = i0+1;
	
	el = document.createElement('img');
	el.className = cls;
	el.id = id + i0;
	el.src = '/images/common/'+ imgname + '_' + i1 + '.gif';
	el.title = APCON.slides[i0].childNodes[0].childNodes[0].title;
	el.style.left = APCON.lf + 'px';
	el.onclick = new Function('slideChange('+i0+')');
	el.onmouseover = function(){document.body.style.cursor = 'pointer'};
	el.onmouseout = function(){document.body.style.cursor = 'default'};
	return el;
}

function SlideShow() {
	var effects = new Array();
	
	//clearSlides();
	effects.push(new Effect.Fade(APCON.slides[APCON.i], {duration:1.0,from:1.0, to:0.0 }));
	if(APCON.thereAreButtons){
		effects.push(new Effect.Fade(APCON.buttonsOn[APCON.i], {duration:1.0,from:1.0, to:0.0 }));
		effects.push(new Effect.Appear(APCON.buttons[APCON.i], {duration:1.0,from:0.0, to:1.0 }));
	}
	
	APCON.i++;
	if (APCON.i > APCON.max) APCON.i = 0;
	effects.push(new Effect.Appear(APCON.slides[APCON.i], {duration:1.0,from:0.0, to:1.0 }));
	if(APCON.thereAreButtons){
		effects.push(new Effect.Appear(APCON.buttonsOn[APCON.i], {duration:1.0,from:0.0, to:1.0 }));
		effects.push(new Effect.Fade(APCON.buttons[APCON.i], {duration:1.0,from:1.0, to:0.0 }));
	}
	new Effect.Parallel(effects,{
		duration:1.0
		,beforeStart: disableButtons
		,afterFinish: enableButtons
	});
	
	//divs were moved off to the side to do the sIFR, now move them back
	if(APCON.sIFR){
		for(var z=0;z<APCON.slides.length;z++){
			if($(APCON.slides[z].id).style.top!=''){
				$(APCON.slides[z].id).hide();
				$(APCON.slides[z].id).style.top='';	
			}
		}
	}else{
		for(var i=1;i<APCON.slides.length;i++){
			$(APCON.slides[APCON.i].id).removeClassName('hide');
		}
	}
};

disableButtons = function(){
	APCON.isFading = true;
};
enableButtons = function(){
	APCON.isFading = false;
};
var slideChange = function(inc){

    // disable buttons during fade
    if(APCON.isFading == true){
	return;
    }
    
    // turn off slideshow, turn off current slide
    clearInterval(APCON.slideIntervalId);
   
    $(APCON.slides[APCON.i]).hide();
    $(APCON.buttons[APCON.i]).show();
    $(APCON.buttonsOn[APCON.i]).hide();
    
    //calc new slide
    
    switch(inc){
        case 'forward':
            APCON.i++;
            break;
        case 'back':
            APCON.i--;
            break;
        default:
            APCON.i=inc;
    }
    
    if (APCON.i < 0) APCON.i = APCON.max;
    if (APCON.i > APCON.max) APCON.i = 0;
    
    // change opacity to 1 before displaying
    $(APCON.slides[APCON.i]).style.opacity = 1.0;
    $(APCON.slides[APCON.i]).style.filter = 'alpha(opacity=' + 100 + ')';
 
    // move back to div if pushed off to the right
    if(APCON.sIFR){
	if($(APCON.slides[APCON.i].id).style.top!=''){
	    $(APCON.slides[APCON.i].id).style.top='';
	}
    }else{
	for(var i=1;i<APCON.slides.length;i++){
		$(APCON.slides[APCON.i].id).removeClassName('hide');
	}
    }
    //display new slide
    $(APCON.slides[APCON.i]).show();
    
    $(APCON.buttonsOn[APCON.i]).show();
    $(APCON.buttons[APCON.i]).hide();
    
    start_slideshow();

}

// the onload event handler that starts the fading. 
function start_slideshow(slides) {
	
	if($(APCON.slides[0])){
		APCON.slideIntervalId = setInterval('SlideShow()',APCON.wait);
	}
}

/**
 * dropDownMenu v0.5 sw edition
 * An easy to implement dropDown Menu for Websites, that may be based on styled list tags
 *
 * Works for IE 5.5+ PC, Mozilla 1+ all Plattforms, Opera 7+
 *
 * Copyright (c) 2004 Knallgrau New Medias Solutions GmbH, Vienna - Austria
 *
 * Original written by Matthias Platzer at http://knallgrau.at
 *
 * Modified by Sven Wappler http://www.wappler.eu
 *
 * Use it as you need it
 * It is distributed under a BSD style license
 */


/**
 * Container Class (Prototype) for the dropDownMenu
 *
 * @param idOrElement     String|HTMLElement  root Node of the menu (ul)
 * @param name            String              name of the variable that stores the result
 *                                            of this constructor function
 * @param customConfigFunction  Function            optional config function to override the default settings
 *                                            for an example see Menu.prototype.config
 */
var Menu = Class.create();
Menu.prototype = {

	initialize: function(idOrElement, name, customConfigFunction) {

		this.name = name;
		this.type = "menu";
		this.closeDelayTimer = null;
		this.closingMenuItem = null;

		this.config();
		if (typeof customConfigFunction == "function") {
			this.customConfig = customConfigFunction;
			this.customConfig();
		}
		this.rootContainer = new MenuContainer(idOrElement, this);
	},

	config: function() {
	  this.collapseBorders = true;
	  this.quickCollapse = true;
	  this.closeDelayTime = 500;
	}

}

var MenuContainer = Class.create();
MenuContainer.prototype = {
	initialize: function(idOrElement, parent) {
		this.type = "menuContainer";
  		this.menuItems = [];
		this.init(idOrElement, parent);
	},

	init: function(idOrElement, parent) {
	  this.element = $(idOrElement);
	  this.parent = parent;
	  this.parentMenu = (this.type == "menuContainer") ? ((parent) ? parent.parent : null) : parent;
	  this.root = parent instanceof Menu ? parent : parent.root;
	  this.id = this.element.id;

	  if (this.type == "menuContainer") {
	  	if (this.element.hasClassName("level1")) this.menuType = "horizontal";
		else if (this.element.hasClassName("level2")) this.menuType = "dropdown";
		else this.menuType = "flyout";

	    if (this.menuType == "flyout" || this.menuType == "dropdown") {
	      this.isOpen = false;
		  Element.setStyle(this.element,{
	      	position: "absolute",
	      	top: "0px",
	      	left: "0px",
	      	visibility: "hidden"});
	    } else {
	      this.isOpen = true;
	    }
	  } else {
	    this.isOpen = this.parentMenu.isOpen;
	  }

	  var childNodes = this.element.childNodes;
	  if (childNodes == null) return;

	  for (var i = 0; i < childNodes.length; i++) {
	    var node = childNodes[i];
	    if (node.nodeType == 1) {
	      if (this.type == "menuContainer") {
	        if (node.tagName.toLowerCase() == "li") {
	          this.menuItems.push(new MenuItem(node, this));
	        }
	      } else {
	        if (node.tagName.toLowerCase() == "ul") {
	          this.subMenu = new MenuContainer(node, this);
	        }
	      }
	    }
	  }
	},

	getBorders: function(element) {
	  var ltrb = ["Left","Top","Right","Bottom"];
	  var result = {};
	  for (var i = 0; i < ltrb.length; ++i) {
	    if (this.element.currentStyle)
	      var value = parseInt(this.element.currentStyle["border"+ltrb[i]+"Width"]);
	    else if (window.getComputedStyle)
	      var value = parseInt(window.getComputedStyle(this.element, "").getPropertyValue("border-"+ltrb[i].toLowerCase()+"-width"));
	    else
	      var value = parseInt(this.element.style["border"+ltrb[i]]);
	    result[ltrb[i].toLowerCase()] = isNaN(value) ? 0 : value;
	  }
	  return result;
	},

	open: function() {
	  if (this.root.closeDelayTimer) window.clearTimeout(this.root.closeDelayTimer);
	  this.parentMenu.closeAll(this);
	  this.isOpen = true;
	  if (this.menuType == "dropdown") {
		Element.setStyle(this.element,{
			left: (Position.positionedOffset(this.parent.element)[0]) + "px",
			top: (Position.positionedOffset(this.parent.element)[1] + Element.getHeight(this.parent.element)) + "px"
		});

	  } else if (this.menuType == "flyout") {
	    var parentMenuBorders = this.parentMenu ? this.parentMenu.getBorders() : new Object();
	    var thisBorders = this.getBorders();
	    
	    // alert("one " + document.body.offsetWidth);
	    // alert(this.element.id);
	    if (
	      (Position.positionedOffset(this.parentMenu.element)[0] + this.parentMenu.element.offsetWidth + this.element.offsetWidth + 20) >
	      (window.innerWidth ? window.innerWidth : document.body.offsetWidth)
	    ) {
			
			Element.setStyle(this.element,{
	      		left: (- this.element.offsetWidth - (this.root.collapseBorders ?  0 : parentMenuBorders["left"])) + "px"
			});
	    } else {
			
			Element.setStyle(this.element,{
	    		left: (this.parentMenu.element.offsetWidth - parentMenuBorders["left"] - (this.root.collapseBorders ?  Math.min(parentMenuBorders["right"], thisBorders["left"]) : 0)) + "px"
			});
	    }
		Element.setStyle(this.element,{
	    	top: (this.parent.element.offsetTop - parentMenuBorders["top"] - this.menuItems[0].element.offsetTop) + "px"
		});
		// alert(this.element.id + ' ' + this.element.style.top + ' ' + this.element.style.left);

	  }

		Element.setStyle(this.element,{visibility: "visible"});		
	},

	close: function() {
		Element.setStyle(this.element,{visibility: "hidden"});
		this.isOpen = false;
		this.closeAll();
	},

	closeAll: function(trigger) {
		for (var i = 0; i < this.menuItems.length; ++i) {
			this.menuItems[i].closeItem(trigger);
		}
	}

}


var MenuItem = Class.create();

Object.extend(Object.extend(MenuItem.prototype, MenuContainer.prototype), {
	initialize: function(idOrElement, parent) {
		var menuItem = this;
		this.type = "menuItem";
		this.subMenu;
		this.init(idOrElement, parent);
		if (this.subMenu) {
			this.element.onmouseover = function() {
				menuItem.subMenu.open();
			}
		} else {
		if (this.root.quickCollapse) {
		  this.element.onmouseover = function() {
			menuItem.parentMenu.closeAll();
		  }
		}
		  }
		  var linkTag = this.element.getElementsByTagName("A")[0];
		  if (linkTag) {
		 linkTag.onfocus = this.element.onmouseover;
		 this.link = linkTag;
		 this.text = linkTag.text;
		  }
		  if (this.subMenu) {
		this.element.onmouseout = function() {
		  if (menuItem.root.openDelayTimer) window.clearTimeout(menuItem.root.openDelayTimer);
		  if (menuItem.root.closeDelayTimer) window.clearTimeout(menuItem.root.closeDelayTimer);
		  eval(menuItem.root.name + ".closingMenuItem = menuItem");
		  menuItem.root.closeDelayTimer = window.setTimeout(menuItem.root.name + ".closingMenuItem.subMenu.close()", menuItem.root.closeDelayTime);
		}
		  }
	},

	openItem: function() {
	  this.isOpen = true;
	  if (this.subMenu) { this.subMenu.open(); }
	},

	closeItem: function(trigger) {
	  this.isOpen = false;
	  if (this.subMenu) {
	    if (this.subMenu != trigger) this.subMenu.close();
	  }
	}
});


var menu;


function configMenu() {
  this.closeDelayTime = 300;
}

function initMenu() {
	if(typeof $('navmenu') == 'undefined' ||$('navmenu')==null){
		return;
	}
	menu = new Menu('root', 'menu', configMenu);
	$('navmenu').removeClassName('hide');
	$('navmenu').addClassName('show');
}


document.observe('dom:loaded', initMenu);

// parse query string and return value for key
// so far just called from /solutions/index.php if you need to generalize the default or refactor
function querySt(key,dflt) {
	hu = window.location.search.substring(1);
	
	if(hu.length == 0){
		hu = dflt;
		key = 'p';
	}

	gy = hu.split("&");
	for (i=0;i<gy.length;i++) {
		ft = gy[i].split("=");
		if (ft[0] == key) {
			return ft[1];
		}
	}
}