/*
	deeADDlog.js	: DIALOG-SYSTEM  | CrossBrowserVersion
	----------------------------------------------------------------------------------------------
	author			: Martin Drescher
	version			: 1.0
	last Updated 	: 2009-02-20
	email			: media@deetraxx.com
	website			: deetraxx.com
	----------------------------------------------------------------------------------------------
	(C) 2004-2009 by deetraxx Media - Hillingsweg 26 - 49324 Melle - GERMANY
	----------------------------------------------------------------------------------------------
	Tested Browser	: 
	----------------------------------------------------------------------------------------------
	W3C-DOM			: Opera 5.02 | Opera 6.0 | Mozilla Firefox 1.0 | Netscape 6.2.2 | Netscape 7.1 
	netscape model	: Netscape 4.05 | Netscape 4.78
	microsoft model	: IE 6
	----------------------------------------------------------------------------------------------
*/


/*
	CONFIGURATION
*/
	var vCard_WIDTH		= 369;
	var vCard_HEIGHT	= 200;

//	var loadingImage	= "/images/icon/loading.gif";		
	var closeButton		= "/images/icon/icon-close-16x16px.gif";		
//
// 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;
	}
//
// 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;
		}
	}
//
// 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'){
			hideContactDetails();
		}
	}
//
// listenKey()
//
	function listenKey (){
		document.onkeypress 	= getKey;
	}
//
// showLightbox()
// Preloads images. Pleaces new image in lightbox then centers and displays.
//
	function showContactDetails(){
		// prep objects
		var objOverlay 				= document.getElementById('overlay');
		var objContactDetails	 	= document.getElementById('vcard');
		//	var objCaption 				= document.getElementById('lightboxCaption');
		//	var objImage 				= document.getElementById('lightboxImage');
		//var objLoadingImage 		= document.getElementById('loadingImage');
		//	var objLightboxDetails 		= document.getElementById('lightboxDetails');
	
		var arrayPageSize 			= getPageSize();
		var arrayPageScroll 		= getPageScroll();
	
		// center loadingImage if it exists
//		if (objLoadingImage){
//			objLoadingImage.style.top 		= (arrayPageScroll[1] + ((arrayPageSize[3] - 35 - objLoadingImage.height) / 2) + 'px');
//			objLoadingImage.style.left 		= (((arrayPageSize[0] - 20 - objLoadingImage.width) / 2) + 'px');
//			objLoadingImage.style.display 	= 'block';
//		}
	
		// set height of Overlay to take up whole page and show
		objOverlay.style.height 			= (arrayPageSize[1] + 'px');
		objOverlay.style.display 			= 'block';

		objContactDetails.style.display		= 'block';
	
		// preload image
		//	imgPreload = new Image();
		//
		//	imgPreload.onload=function(){
		//		objImage.src = objLink.href;

		// center lightbox and make sure that the top and left values are not negative
		// and the image placed outside the viewport
		var contactDetailsTop 			= arrayPageScroll[1] + ((arrayPageSize[3] - 35 - vCard_HEIGHT) / 2);
		var contactDetailsLeft 			= ((arrayPageSize[0] - 20 - vCard_WIDTH) / 2);
				
		objContactDetails.style.top 	= (contactDetailsTop < 0) ? "0px" : contactDetailsTop + "px";
		objContactDetails.style.left 	= (contactDetailsLeft < 0) ? "0px" : contactDetailsLeft + "px";


				//		objLightboxDetails.style.width = imgPreload.width + 'px';
						
				//		if(objLink.getAttribute('title')){
				//			objCaption.style.display = 'block';
							//objCaption.style.width = imgPreload.width + 'px';
				//			objCaption.innerHTML = objLink.getAttribute('title');
				//		} else {
				//			objCaption.style.display = 'none';
				//		}
				
				// A small pause between the image loading and displaying is required with IE,
				// this prevents the previous image displaying for a short burst causing flicker.
				//if (navigator.appVersion.indexOf("MSIE")!=-1){
					//pause(250);
				//} 

				//if (objLoadingImage){
					//objLoadingImage.style.display 		= 'none';
					//}

				//objContactDetails.style.display 		= 'block';
		
				// After image is loaded, update the overlay height as the new image might have
				// increased the overall page height.
				//arrayPageSize 							= getPageSize();
				//objOverlay.style.height 				= (arrayPageSize[1] + 'px');
					
				// Check for 'x' keypress
				//listenKey();
			
				//return false;
				//}
	
			//	imgPreload.src = objLink.href;
			}
//
// hideContactDetails()
//
	function hideContactDetails(){
		// get objects
		objOverlay 			= document.getElementById('overlay');
		objContactDetails 	= document.getElementById('vcard');
	
		// hide lightbox and overlay
		objOverlay.style.display 			= 'none';
		objContactDetails.style.display 	= 'none';
		
		// disable keypress listener
		document.onkeypress = '';
	}
//
// initContactDetails()
// Function runs on window load, going through link tags looking for rel="lightbox".
// These links receive onclick events that enable the lightbox display for their targets.
// The function also inserts html markup at the top of the page which will be used as a
// container for the overlay pattern and the inline image.
//
	function initContactDetails(){
		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];
	
//			if (anchor.getAttribute("href") && (anchor.getAttribute("rel") == "contactDetails")){
//				anchor.onclick = function () {
//					showContactDetails(this);
//					return false;
//					}
//			}
//		}
		// the rest of this code inserts html at the top of the page that looks like this:
		//
		// <div id="overlay">
		//		<a href="#" onclick="hideLightbox(); return false;"><img id="loadingImage" /></a>
		//	</div>
		// <div id="lightbox">
		//		<a href="#" onclick="hideLightbox(); return false;" title="Click anywhere to close image">
		//			<img id="closeButton" />		
		//			<img id="lightboxImage" />
		//		</a>
		//		<div id="lightboxDetails">
		//			<div id="lightboxCaption"></div>
		//			<div id="keyboardMsg"></div>
		//		</div>
		// </div>
		
		var objBody = document.getElementsByTagName("body").item(0);
		
		// create overlay div and hardcode some functional styles (aesthetic styles are in CSS file)
		var objOverlay 						= document.createElement("div");
		objOverlay.setAttribute('id','overlay');
		objOverlay.onclick 					= function () {
			hideContactDetails();
			return false;
		}
		objOverlay.style.display			= 'none';
		objOverlay.style.position 			= 'absolute';
		objOverlay.style.top 				= '0';
		objOverlay.style.left 				= '0';
		objOverlay.style.zIndex 			= '90';
		objOverlay.style.width 				= '100%';
		objBody.insertBefore(objOverlay, objBody.firstChild);
		
		var arrayPageSize 					= getPageSize();
		var arrayPageScroll 				= getPageScroll();
		
		var vCardPosLeft					= (arrayPageSize[2] - vCard_WIDTH) / 2;
		var vCardPosTop						= (arrayPageSize[3] - vCard_HEIGHT) / 2;

//alert("Index-0: "+arrayPageSize[0]+"\nIndex-1: "+arrayPageSize[1]+"\nIndex-2: "+arrayPageSize[2]+"\nIndex-3: "+arrayPageSize[3]+"\nvCardPosLeft: "+vCardPosLeft+"vCardPosTop: "+vCardPosTop+"");

		var objContactDetails 				= document.createElement("div");
		objContactDetails.setAttribute('id','vcard');
		objContactDetails.style.display		= 'none';
		objContactDetails.style.position 	= 'absolute';
		objContactDetails.style.top 		= (vCardPosTop + 'px');
		objContactDetails.style.left 		= (vCardPosLeft + 'px');
		objContactDetails.style.zIndex 		= '100';	
		objBody.insertBefore(objContactDetails, objOverlay.nextSibling);

//		var objCloseButtonLink				= document.createElement("a");
//		objCloseButtonLink.setAttribute('href','#');
//		objCloseButtonLink.onclick 			= function(){
//			hideContactDetails();
//			return false;	
//		}
//		objContactDetails.appendChild(objCloseButtonLink)

//		imgPreloadCloseButton.onload=function(){

//			var objCloseButton = document.createElement("img");
//			objCloseButton.src = closeButton;
//			objCloseButton.setAttribute('id','closeButton');
//			objCloseButton.style.position = 'absolute';
//			objCloseButton.style.zIndex = '200';
//			objCloseButtonLink.appendChild(objCloseButton);
//			return false;
//		}
	
//		imgPreloadCloseButton.src = closeButton;


		// preload and create loader image
		//		var imgPreloader = new Image();
		
		// if loader image found, create link to hide lightbox and create loadingimage
		//imgPreloader.onload=function(){
//			var objLoadingImageLink = document.createElement("a");

//			objLoadingImageLink.setAttribute('href','#');
//			objLoadingImageLink.onclick = function () {
//				hideContactDetails();
//				return false;
//				}
//			objOverlay.appendChild(objLoadingImageLink);
			
//			var objLoadingImage = document.createElement("img");
//			objLoadingImage.src = loadingImage;
//			objLoadingImage.setAttribute('id','loadingImage');
//			objLoadingImage.style.zIndex = '150';
//			objLoadingImageLink.appendChild(objLoadingImage);
	
//			imgPreloader.onload=function(){};	//	clear onLoad, as IE will flip out w/animated gifs
	
//			return false;
//		}
	
//		imgPreloader.src = loadingImage;
	
		// create lightbox div, same note about styles as above
	//	var objLightbox = document.createElement("div");
	//	objLightbox.setAttribute('id','lightbox');
	//	objLightbox.style.display = 'none';
	//	objLightbox.style.position = 'absolute';
	//	objLightbox.style.zIndex = '100';	
	//	objBody.insertBefore(objLightbox, objOverlay.nextSibling);
		
		// create link
//		var objLink = document.createElement("a");
//		objLink.setAttribute('href','#');
//		objLink.setAttribute('title','Click to close');
//		objLink.onclick = function () {
//			hideContactDetails();
//			return false;
//			}
//		objContactDetails.appendChild(objLink);
	
		// preload and create close button image
//		var imgPreloadCloseButton = new Image();
	
		// if close button image found, 
//		imgPreloadCloseButton.onload=function(){
	
//			var objCloseButton = document.createElement("img");
//			objCloseButton.src = closeButton;
//			objCloseButton.setAttribute('id','closeButton');
//			objCloseButton.style.position = 'absolute';
//			objCloseButton.style.zIndex = '200';
//			objLink.appendChild(objCloseButton);
	
//			return false;
//		}
	
//		imgPreloadCloseButton.src = closeButton;
	
		// create image
	//	var objImage = document.createElement("img");
	//	objImage.setAttribute('id','lightboxImage');
	//	objLink.appendChild(objImage);
		
		// create details div, a container for the caption and keyboard message
	//	var objLightboxDetails = document.createElement("div");
	//	objLightboxDetails.setAttribute('id','lightboxDetails');
	//	objLightbox.appendChild(objLightboxDetails);
	
		// create caption
	//	var objCaption = document.createElement("div");
	//	objCaption.setAttribute('id','lightboxCaption');
	//	objCaption.style.display = 'none';
	//	objLightboxDetails.appendChild(objCaption);
	
		// create keyboard message
	//	var objKeyboardMsg = document.createElement("div");
	//	objKeyboardMsg.setAttribute('id','keyboardMsg');
	//	objKeyboardMsg.innerHTML = 'press <kbd>x</kbd> to close';
	//	objLightboxDetails.appendChild(objKeyboardMsg);
	//
	
	}
//
// addLoadEvent()
// Adds event to window.onload without overwriting currently assigned onload functions.
// Function found at Simon Willison's weblog - http://simon.incutio.com/
//
function addLoadEvent(func)
{	
	var oldonload = window.onload;
	if (typeof window.onload != 'function'){
    	window.onload = func;
	} else {
		window.onload = function(){
		oldonload();
		func();
		}
	}

}
addLoadEvent(initContactDetails);	// run initLightbox onLoad