// -----------------------------------------------------------------------------------
//  Infobox Bildergalerie Mod for Cabacos CMS v1-07.03.2008
//  adapted by Andreas Windt - http://www.andreaswindt.de
//  for CabacosCMS by IT-Direkt - http://www.cabacos-cms.de
// -----------------------------------------------------------------------------------
//	Infobox v2.03.3
//	by Lokesh Dhakar - http://www.huddletogether.com
//	5/21/06
//	For more information on this script, visit:
//	http://huddletogether.com/projects/infobox2/
//	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.
// -----------------------------------------------------------------------------------
var fileLoadingImage = "/read/templates/elements/infobox/images/loading.gif";		
var fileBottomNavCloseImage = "/read/templates/elements/infobox/images/close.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
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, {
	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; 
	},
	setMap: function(element,map) {
		element = $(element);
		element.useMap = map;
	},
	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 Infobox = Class.create();
Infobox.prototype = {
	initialize: function() {	
		this.updateImageList();
		var objBody = document.getElementsByTagName("body").item(0);
		
		var objOverlay = document.createElement("div");
		objOverlay.setAttribute('id','ib_overlay');
		objOverlay.style.display = 'none';
		objOverlay.onclick = function() { myInfobox.end(); }
		objBody.appendChild(objOverlay);
		
		var objInfobox = document.createElement("div");
		objInfobox.setAttribute('id','ib_infobox');
		objInfobox.style.display = 'none';
		objInfobox.onclick = function(e) {	// close Infobox is user clicks shadow overlay
			if (!e) var e = window.event;
			var clickObj = Event.element(e).id;
			if ( clickObj == 'ib_infobox') {
				myInfobox.end();
			}
		};
		objBody.appendChild(objInfobox);
			
		var objOuterImageContainer = document.createElement("div");
		objOuterImageContainer.setAttribute('id','ib_outerImageContainer');
		objInfobox.appendChild(objOuterImageContainer);

		if(animate){
			Element.setWidth('ib_outerImageContainer', 250);
			Element.setHeight('ib_outerImageContainer', 250);			
		} else {
			Element.setWidth('ib_outerImageContainer', 1);
			Element.setHeight('ib_outerImageContainer', 1);			
		}

		var objImageContainer = document.createElement("div");
		objImageContainer.setAttribute('id','ib_imageContainer');
		objOuterImageContainer.appendChild(objImageContainer);
	
		var objInfoboxImage = document.createElement("div");
		objInfoboxImage.setAttribute('id','ib_infoboxImage');
		objImageContainer.appendChild(objInfoboxImage);
	
		var objHoverNav = document.createElement("div");
		objHoverNav.setAttribute('id','ib_hoverNav');
		objImageContainer.appendChild(objHoverNav);
	
		var objPrevLink = document.createElement("a");
		objPrevLink.setAttribute('id','ib_prevLink');
		objPrevLink.setAttribute('href','#');
		objHoverNav.appendChild(objPrevLink);
		
		var objNextLink = document.createElement("a");
		objNextLink.setAttribute('id','ib_nextLink');
		objNextLink.setAttribute('href','#');
		objHoverNav.appendChild(objNextLink);
	
		var objLoading = document.createElement("div");
		objLoading.setAttribute('id','ib_loading');
		objImageContainer.appendChild(objLoading);
	
		var objLoadingLink = document.createElement("a");
		objLoadingLink.setAttribute('id','ib_loadingLink');
		objLoadingLink.setAttribute('href','#');
		objLoadingLink.onclick = function() { myInfobox.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','ib_imageDataContainer');
		objInfobox.appendChild(objImageDataContainer);

		var objImageData = document.createElement("div");
		objImageData.setAttribute('id','ib_imageData');
		objImageDataContainer.appendChild(objImageData);
	
		var objImageDetails = document.createElement("div");
		objImageDetails.setAttribute('id','ib_imageDetails');
		objImageData.appendChild(objImageDetails);
	
		var objCaption = document.createElement("span");
		objCaption.setAttribute('id','ib_caption');
		objImageDetails.appendChild(objCaption);
	
		var objNumberDisplay = document.createElement("span");
		objNumberDisplay.setAttribute('id','ib_numberDisplay');
		objImageDetails.appendChild(objNumberDisplay);
		
		var objBottomNav = document.createElement("div");
		objBottomNav.setAttribute('id','ib_bottomNav');
		objImageData.appendChild(objBottomNav);
	
		var objBottomNavCloseLink = document.createElement("a");
		objBottomNavCloseLink.setAttribute('id','ib_bottomNavClose');
		objBottomNavCloseLink.setAttribute('href','#');
		objBottomNavCloseLink.onclick = function() { myInfobox.end(); return false; }
		objBottomNav.appendChild(objBottomNavCloseLink);
	
		var objBottomNavCloseImage = document.createElement("img");
		objBottomNavCloseImage.setAttribute('src', fileBottomNavCloseImage);
		objBottomNavCloseLink.appendChild(objBottomNavCloseImage);
		
		$("ib_infoboxImage").update("<div id=\"ib_videocontainer\"></div>");
		swfobject.embedSWF("infobox/flvplayer.swf", "ib_videocontainer", "512", "288", "8.0.0","", {file: "../peak_imgs/video_peak2011.flv", autostart: "false", repeat: "false", showcontrolbar: "hide", image: "../peak_imgs/video_peak2011.png", overstretch: "true" }, {wmode: "opaque", quality: "low", allowfullscreen: "true"}, {});
	},

	updateImageList: function() {	
	},
	start: function(imageLink) {	

		hideSelectBoxes();

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

		new Effect.Appear('ib_overlay', { duration: overlayDuration, from: 0.0, to: overlayOpacity });
		
		// calculate top and left offset for the infobox 
		var arrayPageScroll = getPageScroll();
		var infoboxTop = arrayPageScroll[1] + (arrayPageSize[3] / 10);
		var infoboxLeft = arrayPageScroll[0];
		Element.setTop('ib_infobox', infoboxTop);
		Element.setLeft('ib_infobox', infoboxLeft);
		
		Element.show('ib_infobox');
		
		this.changeImage(); //imageNum);
	},
	changeImage: function() {	
		// hide elements during transition
		if(animate){ Element.show('ib_loading');}
		Element.hide('ib_infoboxImage');
		Element.hide('ib_hoverNav');
		Element.hide('ib_prevLink');
		Element.hide('ib_nextLink');
		Element.hide('ib_imageDataContainer');
		Element.hide('ib_numberDisplay');		
		myInfobox.resizeImageContainer(512, 288);
	},
	resizeImageContainer: function( imgWidth, imgHeight) {

		// get curren width and height
		this.widthCurrent = Element.getWidth('ib_outerImageContainer');
		this.heightCurrent = Element.getHeight('ib_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('ib_outerImageContainer', this.yScale, {scaleX: false, duration: resizeDuration, queue: 'front'}); }
		if(!( wDiff == 0)){ new Effect.Scale('ib_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('ib_prevLink', imgHeight);
		Element.setHeight('ib_nextLink', imgHeight);
		Element.setWidth( 'ib_imageDataContainer', widthNew);

		this.showImage();
	},
	showImage: function(){
		Element.hide('ib_loading');
		new Effect.Appear('ib_infoboxImage', { duration: resizeDuration, queue: 'end', afterFinish: function(){	myInfobox.updateDetails(); } });
	},

	updateDetails: function() {
	},

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

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

	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 infobox
			myInfobox.end();
		} else if((key == 'p') || (keycode == 37)){	// display previous image
			if(activeImage != 0){
				myInfobox.disableKeyboardNav();
				myInfobox.changeImage(activeImage - 1);
			}
		} else if((key == 'n') || (keycode == 39)){	// display next image
			if(activeImage != (imageArray.length - 1)){
				myInfobox.disableKeyboardNav();
				myInfobox.changeImage(activeImage + 1);
			}
		}

	},

	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: function() {
		this.disableKeyboardNav();
		Element.hide('ib_infobox');
		new Effect.Fade('ib_overlay', { duration: overlayDuration});
		showSelectBoxes();
		showFlash();
	}
}

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

	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(){
	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(){
}
function hideFlash(){
}
function pause(ms){
	var date = new Date();
	curDate = null;
	do{var curDate = new Date();}
	while( curDate - date < ms);
}
function initInfobox() { myInfobox = new Infobox(); }
Event.observe(window, 'load', initInfobox);