/**
* @version $Id: jflex.js v 1.0 2007/04/17
* @author Ute Jacobi www.jahoart.eu
* @copyright (c) 2006,2007 Ute Jacobi
* @license JFlex Image Basis -> jahoART Non-Commercial License / JFlex Image Full -> jahoART Commercial License
* @license all other js script see by script 
*/

/*
This script is based on 
Lightbox JS: Fullsize Image Overlays 1.0
by Lokesh Dhakar - http://www.huddletogether.com
*/

/*
all script edited for JFlex Image by Ute Jacobi
*/
function addLoadEvent(func){	
	var oldonload = window.onload;
	if (typeof window.onload != 'function'){
    	window.onload = func;
	} else {
		window.onload = function(){
		oldonload();
		func();
		}
	}
}

function repStringJs(string,suchen,ersetzen) {
	ausgabe = "" + string;
		while (ausgabe.indexOf(suchen)>-1) {
			pos= ausgabe.indexOf(suchen);
			ausgabe = "" + (ausgabe.substring(0, pos) + ersetzen +
			ausgabe.substring((pos + suchen.length), ausgabe.length));
		}
	  return ausgabe;
}

/* From prototype.js */
document.getElementsByClassName = function(className) {
	var children = document.getElementsByTagName('*') || document.all;
	var elements = new Array();
	for (var i = 0; i < children.length; i++) {
		var child = children[i];
		var classNames = child.className.split(' ');
		for (var j = 0; j < classNames.length; j++) {
			if (classNames[j] == className) {
				elements.push(child);
				break;
			}
		}
	}
	return elements;
}

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){ // 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;
}

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

function getKey(e){
	if (e == null) { // ie
		keycode = event.keyCode;
	} else { // mozilla
		keycode = e.which;
	}
	if(keycode == '27' || keycode == '88' ){ hideLightbox(); 
	}
}

function listenKey () {	document.onkeydown = getKey; }

function showLightbox(objLink)
{
	var objOverlay = document.getElementById('overlay');
	var objLightbox = document.getElementById('overlaybox');
	var objCaption = document.getElementById('olCaption');
	var objImage = document.getElementById('olImage');
	var objLoadingImage = document.getElementById('loadingImage');
	var objLightboxDetails = document.getElementById('olDetails');
	var arrayPageSize = getPageSize();
	var arrayPageScroll = getPageScroll();
	
	varsearch =objLink.search;
	
	if (varsearch != '' && varsearch != 'undefined')
	{
	  linkvar = new Array();
	  varsearch = varsearch.substr(1, varsearch.length - 1);
	  varsearch = varsearch.replace(/%26/,'&');
	  varsplit = varsearch.split('&');
	
	  for (i = 0; i < varsplit.length; i++)
	  {
	  varsplit[i] = varsplit[i].split('=');
	  linkvar[varsplit[i][0]] = varsplit[i][1];
	  }
	} else {
		varsearch = 0;
	}
	
	if (loadingImage != 'no') { 
		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';
		}
	}
	
	objOverlay.style.background= 'url('+ olImage + ')';
	objOverlay.style.height = (arrayPageSize[1] + 'px');
	objOverlay.style.display = 'block';
 	
	imgPreload = new Image();
	imgPreload.onload=function(){
	
	var imageHeight= '';
	var imageWidth=  '';

		objImage.src = objLink.href;
		
		if ( varsearch != 0 ){
			imageHeight= linkvar['ph'];
			imageWidth= linkvar['pw'];
		} else {
			imageHeight= objImage.height;
			imageWidth= objImage.width;		
		}

		var arrayPageSize = getPageSize();
		var arrayPageScroll = getPageScroll();
		objImage.style.width = imageWidth + 'px';
		objImage.style.height = imageHeight + 'px';
		
		var lightboxTop = arrayPageScroll[1] + ((arrayPageSize[3] - 35 - imageHeight) / 2);
		var lightboxLeft = ((arrayPageSize[0] - 20 - imageWidth) / 2);
		
		objLightbox.style.top = (lightboxTop < 0) ? "0px" : lightboxTop + "px";
		objLightbox.style.left = (lightboxLeft < 0) ? "0px" : lightboxLeft + "px";

		if ( Number(imageWidth) < Number(minWidth)) {
			objLightboxDetails.style.width = minWidth + 'px';
		
		} else {
			objLightboxDetails.style.width = imageWidth + 'px';
		}

		if (showClose == 'true') {
			infotxt = msgText;
		} else {
			infotxt = '';
		} 
		
		if( objLink.getAttribute( 'title' ) ){
			captiontxt = objLink.getAttribute('title');
			var alttxt = objLink.getAttribute('title');
		} else {
			captiontxt = '';
			var alttxt = 'Bild';
		} 		
		
	       objCaption.innerHTML = captiontxt + infotxt;
	       objImage.setAttribute('alt',alttxt);
		
		if (showText == 'false') {
			if (showText == 'false' && showClose == 'false') {
				objCaption.style.display = 'none';
				objLightboxDetails.style.height = '10px';
			} else {
				objCaption.style.display = 'none';			
			}
		} else {
			objCaption.style.display = 'block';
		}		

		if (navigator.appVersion.indexOf("MSIE")!=-1){
			pause(250);
		} 

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

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

		objLightbox.style.display = 'block';
		arrayPageSize = getPageSize();
		objOverlay.style.height = (arrayPageSize[1] + 'px');
		listenKey();
		return false;
	}

	imgPreload.src = objLink.href;
}

function hideLightbox()
{
	objOverlay = document.getElementById('overlay');
	objLightbox = document.getElementById('overlaybox');
	objOverlay.style.display = 'none';
	objLightbox.style.display = 'none';
	selects = document.getElementsByTagName("select");
    	for (i = 0; i != selects.length; i++) {
		selects[i].style.visibility = "visible";
	}
	document.onkeypress = '';
}

function initOverlay()
{
	if (!document.getElementsByTagName){ return; }
	var anchors = document.getElementsByTagName("a");

	for (var i=0; i<anchors.length; i++){
		var anchor = anchors[i];

		if (anchor.getAttribute("href") && (anchor.getAttribute("rel") == "overlaybox")){
			anchor.onclick = function () {showLightbox(this); return false;}
		}
	}

	var objBody = document.getElementsByTagName("body").item(0);
	var objOverlay = document.createElement("div");
	objOverlay.setAttribute('id','overlay');
	objOverlay.onclick = function () {hideLightbox(); 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 imgPreloader = new Image();
	
	imgPreloader.onload=function(){

	var objLoadingImageLink = document.createElement("a");
	objLoadingImageLink.setAttribute('href','#');
	objLoadingImageLink.onclick = function () {hideLightbox(); return false;}
	objOverlay.appendChild(objLoadingImageLink);
		
	var objLoadingImage = document.createElement("img");
	objLoadingImage.src = loadingImage;
	objLoadingImage.setAttribute('id','loadingImage');
	objLoadingImage.style.position = 'absolute';
	objLoadingImage.style.zIndex = '150';
	objLoadingImageLink.appendChild(objLoadingImage);

	imgPreloader.onload=function(){};

	return false;
	}

	imgPreloader.src = loadingImage;
	
	var objLightbox = document.createElement("div");
	objLightbox.setAttribute('id','overlaybox');
	objLightbox.style.display = 'none';
	objLightbox.style.position = 'absolute';
	objLightbox.style.zIndex = '100';	
	objBody.insertBefore(objLightbox, objOverlay.nextSibling);
	
	var objLink = document.createElement("div");
	objLink.onclick = function () {hideLightbox(); return false;}
	objLightbox.appendChild(objLink);

	var objImage = document.createElement("img");
	objImage.setAttribute('id','olImage');
	objImage.setAttribute('alt', closeText);
	objLink.appendChild(objImage);
	
	var objLightboxDetails = document.createElement("div");
	objLightboxDetails.setAttribute('id','olDetails');
	objLightbox.appendChild(objLightboxDetails);
	
	var objCaption = document.createElement("div");
	objCaption.setAttribute('id','olCaption');
	objCaption.style.display = 'none';
	objLightboxDetails.appendChild(objCaption);

}

addLoadEvent(initOverlay);

/* Popup */

function showImagePopup(image,imgW,imgH,imgAlt,acctext) {

ie  = ( document.styleSheets && document.all ) ? true : false;
addpxW  = ( ie ) ? 18 : 0;

doctype="<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">\n<html>\n<head>\n<meta http-equiv=\"content-type\" content=\"text/html; charset=iso-8859-1\">\n<meta http-equiv=\"imagetoolbar\" content=\"no\">\n";
style='<style type=\"text/css\">\n<!--\n  * {margin: 0; padding: 0;}\nbody {color: #000; background-color: #fff; margin: 0;}\n -->\n</style>\n';
	
	openwin = window.open("","openwin","resizable=1, scrollbars=1,width="+(Number(imgW)+Number(addpxW))+",height="+imgH+",left="+ ((screen.width-imgW)/2) +",top="+ ((screen.height-imgH)/2) );
	openwin.document.open();
	openwin.document.write(doctype+'<title>'+titlePop+' '+imgAlt+'</title>'+style+'</head>\n'); 
	openwin.document.write('<body onblur="self.close()">\n'); 
	openwin.document.write('<div id=\"hintergrund\" style=\"position:absolute; left:0px; top:0px;\">\n');
	openwin.document.write('<img src=\"'+image+'\" onclick=\"window.close();\" onkeypress=\"window.close();\" width=\"'+imgW+'\" height=\"'+imgH+'\" alt=\"'+imgAlt+'\" /></div>\n\n'); 
	openwin.document.write('<div id=\"vordergrund\" style=\"position:absolute; left:0px; top:0px;\">\n');
	openwin.document.write('<img src=\"'+foreground+'\" onclick=\"window.close();\" onkeypress=\"window.close();\" width=\"'+imgW+'\" height=\"'+imgH+'\" title=\"'+ closePop +' alt=\"'+imgAlt+'\" /></div>\n'); 
	openwin.document.write('<p style=\"display:none;\">'+acctext+'</p>\n');	
	openwin.document.write('</body></html>');
	openwin.document.close();
	openwin.focus();
}

/* added for all js */

function addLoadEvent(func)
{	
	var oldonload = window.onload;
	if (typeof window.onload != 'function'){
    	window.onload = func;
	} else {
		window.onload = function(){
		oldonload();
		func();
		}
	}
}

function repStringJs(string,suchen,ersetzen) {
	ausgabe = "" + string;
		while (ausgabe.indexOf(suchen)>-1) {
			pos= ausgabe.indexOf(suchen);
			ausgabe = "" + (ausgabe.substring(0, pos) + ersetzen +
			ausgabe.substring((pos + suchen.length), ausgabe.length));
		}
	  return ausgabe;
}

/* From prototype.js */
document.getElementsByClassName = function(className) {
	var children = document.getElementsByTagName('*') || document.all;
	var elements = new Array();
  
	for (var i = 0; i < children.length; i++) {
		var child = children[i];
		var classNames = child.className.split(' ');
		for (var j = 0; j < classNames.length; j++) {
			if (classNames[j] == className) {
				elements.push(child);
				break;
			}
		}
	}
	return elements;
}