/*
	Lightbox JS: Fullsize Image Overlays 
	by Lokesh Dhakar - http://www.huddletogether.com

	For more information on this script, visit:
	http://huddletogether.com/projects/lightbox/

	Licensed under the Creative Commons Attribution 2.5 License - http://creativecommons.org/licenses/by/2.5/
	(basically, do anything you want, just leave my name and link)
	
	Table of Contents
	-----------------
	Configuration
	
	Functions
	- getPageScroll()
	- getPageSize()
	- pause()
	- getKey()
	- listenKey()
	- showLightbox()
	- hideLightbox()
	- initLightbox()
	- addLoadEvent()
	
	Function Calls
	- addLoadEvent(initLightbox)

*/



//
// Configuration
//

// If you would like to use a custom loading image or close button reference them in the next two lines.
var loadingImage = 'loading.gif';		
var closeButton = 'close.gif';		

var LW=750 ;  //szelesseg
var LH=400; //magassag


// Lightbox 2

   function getPageSize2() {
	        
	     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;
		}

		return [pageWidth,pageHeight];
	}



//
// 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'){ hideLightbox(); }
}


//
// listenKey()
//
function listenKey () {	document.onkeypress = getKey; }
	

//
// showLightbox()
// Preloads images. Pleaces new image in lightbox then centers and displays.
//
function classHttpRequest()
{
var http_request = false;
 if (window.XMLHttpRequest) { // Mozilla, Safari,...
   this.http_request = new XMLHttpRequest();
   if (this.http_request.overrideMimeType) {
    this.http_request.overrideMimeType('text/xml');
      // See note below about this line
   }
  } else if (window.ActiveXObject) { // IE
   try {
    this.http_request = new ActiveXObject("Msxml2.XMLHTTP");
   } catch (e) {
      try {
       this.http_request = new ActiveXObject("Microsoft.XMLHTTP");
      } catch (e) {}
     }
   }

   if (!this.http_request) {
    alert('Feladtam :( Nem tudok XMLHTTP példányt létrehozni');
            return false;
   }
}
function loadimage(){
	var objloadimage= new classHttpRequest();
		objloadimage.http_request.onreadystatechange = function() { objdrawimage(objloadimage.http_request); };
//		objloadimage.http_request.open('GET', "ajax_programok.php?PHPSESSID=<?php echo $PHPSESSID ;?>", true);
		objloadimage.http_request.open('GET', "ajax_programok.php", true);
		objloadimage.http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	//	objloadimage.http_request.setRequestHeader("Content-length", lastmsg.length);
		objloadimage.http_request.setRequestHeader("Connection", "close");
		objloadimage.http_request.send("");
}
function objdrawimage(http_request) {
 if (http_request.readyState == 4) {
  if (http_request.status == 200) {
	if (http_request.responseText!="")
		{
		var objContent = document.getElementById('lightboxContent');
		objContent.innerHTML=http_request.responseText;
		}
  } else {
     alert('Nem lehetkapcsolódi a szerverhez. Próbálja meg később.');
    }
 }
}

//gallery
function loadgallery(skat){
	var objloadgallery= new classHttpRequest();
		objloadgallery.http_request.onreadystatechange = function() { objdrawgallery(objloadgallery.http_request); };
//		objloadgallery.http_request.open('GET', "ajax_programok.php?PHPSESSID=<?php echo $PHPSESSID ;?>", true);
		objloadgallery.http_request.open('GET', "ajax_galeria.php?kat="+skat, true);
		objloadgallery.http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	//	objloadgallery.http_request.setRequestHeader("Content-length", lastmsg.length);
		objloadgallery.http_request.setRequestHeader("Connection", "close");
		objloadgallery.http_request.send("");
}
function objdrawgallery(http_request) {
 if (http_request.readyState == 4) {
  if (http_request.status == 200) {
	if (http_request.responseText!="")
		{
		var objContent = document.getElementById('lightboxContent');
		objContent.innerHTML=http_request.responseText;
		}
  } else {
     alert('Nem lehetkapcsolódi a szerverhez. Próbálja meg később.');
    }
 }
}

//gallery end

//links
function loadlinks(){
	var objloadlinks= new classHttpRequest();
		objloadlinks.http_request.onreadystatechange = function() { objdrawlinks(objloadlinks.http_request); };
//		objloadlinks.http_request.open('GET', "ajax_programok.php?PHPSESSID=<?php echo $PHPSESSID ;?>", true);
		objloadlinks.http_request.open('GET', "ajax_linkek.php", true);
		objloadlinks.http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	//	objloadlinks.http_request.setRequestHeader("Content-length", lastmsg.length);
		objloadlinks.http_request.setRequestHeader("Connection", "close");
		objloadlinks.http_request.send("");
}
function objdrawlinks(http_request) {
 if (http_request.readyState == 4) {
  if (http_request.status == 200) {
	if (http_request.responseText!="")
		{
		var objContent = document.getElementById('lightboxContent');
		objContent.innerHTML=http_request.responseText;
		}
  } else {
     alert('Nem lehetkapcsolódi a szerverhez. Próbálja meg később.');
    }
 }
}

//links end

//contact
function loadcontact(){
	var objloadcontact= new classHttpRequest();
		objloadcontact.http_request.onreadystatechange = function() { objdrawcontact(objloadcontact.http_request); };
//		objloadcontact.http_request.open('GET', "ajax_programok.php?PHPSESSID=<?php echo $PHPSESSID ;?>", true);
		objloadcontact.http_request.open('GET', "ajax_kapcsolat.php", true);
		objloadcontact.http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	//	objloadcontact.http_request.setRequestHeader("Content-length", lastmsg.length);
		objloadcontact.http_request.setRequestHeader("Connection", "close");
		objloadcontact.http_request.send("");
}
function objdrawcontact(http_request) {
 if (http_request.readyState == 4) {
  if (http_request.status == 200) {
	if (http_request.responseText!="")
		{
		var objContent = document.getElementById('lightboxContent');
		objContent.innerHTML=http_request.responseText;
		}
  } else {
     alert('Nem lehetkapcsolódi a szerverhez. Próbálja meg később.');
    }
 }
}

//contact end
//blues alley
function loadblues(){
	var objloadblues= new classHttpRequest();
		objloadblues.http_request.onreadystatechange = function() { objdrawblues(objloadblues.http_request); };
//		objloadblues.http_request.open('GET', "ajax_programok.php?PHPSESSID=<?php echo $PHPSESSID ;?>", true);
		objloadblues.http_request.open('GET', "ajax_blues_alley.php", true);
		objloadblues.http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	//	objloadblues.http_request.setRequestHeader("Content-length", lastmsg.length);
		objloadblues.http_request.setRequestHeader("Connection", "close");
		objloadblues.http_request.send("");
}
function objdrawblues(http_request) {
 if (http_request.readyState == 4) {
  if (http_request.status == 200) {
	if (http_request.responseText!="")
		{
		var objContent = document.getElementById('lightboxContent');
		objContent.innerHTML=http_request.responseText;
		}
  } else {
     alert('Nem lehetkapcsolódi a szerverhez. Próbálja meg később.');
    }
 }
}

//blues end
function showLightbox(section_)
{
LW=750 ;  //szelesseg
LH=400; //magassag

	// prep objects
	var objOverlay = document.getElementById('overlay');
	var objLightbox = document.getElementById('lightbox');
	var objLightboxmiddle = document.getElementById('lightboxmiddle');

	var objCaption = document.getElementById('lightboxCaption');
	var objImage = document.getElementById('lightboxImage');
	var objContent = document.getElementById('lightboxContent');
	var objLoadingImage = document.getElementById('loadingImage');
	var objLightboxDetails = document.getElementById('lightboxDetails');

    var objContent = document.getElementById('lightboxContent');
	objContent.innerHTML="<font color='#DDDDDD'>&nbsp;Betöltés folyamatban...Kis türelmét kérjük...</font>";
switch (section_)
{
	case 6:
	var objLabel = document.getElementById('lightboxLabeli');
	objLabel.style.display = 'block';
	objLabel.innerHTML="<h3>programok</h3>";
	loadimage();
	break;

	case 1:
	var objLabel = document.getElementById('lightboxLabeli');
	objLabel.style.display = 'block';
	objLabel.innerHTML="<h3>blues alley</h3>";
	loadblues();
	break;

	case 2:
	var objLabel = document.getElementById('lightboxLabeli');
	objLabel.style.display = 'block';
	objLabel.innerHTML="<h3>gal&eacute;ria</h3>";
	loadgallery(-1);
	break;

	case 3:
	var objLabel = document.getElementById('lightboxLabeli');
	objLabel.style.display = 'block';
	objLabel.innerHTML="<h3>kapcsolat</h3>";
	//LW=300;
	//LH=380;
	loadcontact();
	break;

	case 4:
	var objLabel = document.getElementById('lightboxLabeli');
	objLabel.style.display = 'block';
	objLabel.innerHTML="<h3>linkek</h3>";
	loadlinks();
	break;

//default: alert ('iba történt');
};
	
	
	
	var arrayPageSize = getPageSize();
	var arrayPageSize2 = getPageSize2();
	var arrayPageScroll = getPageScroll();

	// center loadingImage if it exists
	

	// set height of Overlay to take up whole page and show
	objOverlay.style.height = (arrayPageSize[1]-1 + 'px');
	objOverlay.style.display = 'block';

	// preload image
	//imgPreload = new Image();



		arrayPageSize = getPageSize();
		arrayPageSize2 = getPageSize2();
		objOverlay.style.height = (arrayPageSize2[1]-1 + 'px');




		var lightboxTop = arrayPageScroll[1] + ((arrayPageSize[3] - 35 - LH) / 2)-50;
		var lightboxLeft = ((arrayPageSize[0] - 20 - LW) / 2);
		
		objLightbox.style.top = (lightboxTop < 0) ? "0px" : lightboxTop + "px";
		objLightbox.style.left = (lightboxLeft < 0) ? "0px" : lightboxLeft + "px";


		objLightboxDetails.style.width = LW+ 'px';



		// Hide select boxes as they will 'peek' through the image in IE
		selects = document.getElementsByTagName("select");
        for (i = 0; i != selects.length; i++) {
                selects[i].style.visibility = "hidden";
        }

	
		objLightbox.style.display = 'block';




	
}





//
// hideLightbox()
//
function hideLightbox()
{
	// get objects
	objOverlay = document.getElementById('overlay');
	objLightbox = document.getElementById('lightbox');

	// hide lightbox and overlay
	objOverlay.style.display = 'none';
	objLightbox.style.display = 'none';

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

	// disable keypress listener
	document.onkeypress = '';
}




//
// initLightbox()
// 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 initLightbox()
{
	
	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") == "lightbox")){
			anchor.onclick = function () {showLightbox(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 () {hideLightbox(); return false;}
	objOverlay.style.display = 'none';
	objOverlay.style.position = 'absolute';
	objOverlay.style.top = '0';
	objOverlay.style.left = '0';
	objOverlay.style.zIndex = '90';
var arrayPageSize2 = getPageSize2();
 	objOverlay.style.width = arrayPageSize2[0] +'px';
	objBody.insertBefore(objOverlay, objBody.firstChild);
	//alert (arrayPageSize2[0] + " - " + arrayPageSize2[1]) ;
	var arrayPageSize = getPageSize();
	var arrayPageScroll = getPageScroll();

	// 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 () {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(){};	//	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);

	var objLightboxmiddle = document.createElement("div");
	objLightboxmiddle.setAttribute('id','lightboxmiddle');
	objLightboxmiddle.style.display = 'block';
	objLightboxmiddle.style.position = 'absolute';
	objLightboxmiddle.style.zIndex = '100';	
	

	// create link
	var objLink = document.createElement("a");
	objLink.setAttribute('href','#');
	objLink.setAttribute('title','Click to close');
	objLink.onclick = function () {hideLightbox(); return false;}
	objLightboxmiddle.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 content
	var objContent = document.createElement("div");
	objContent.setAttribute('id','lightboxContent');



	// 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');
	objLightboxmiddle.appendChild(objLightboxDetails);

	// create caption
	var objCaption = document.createElement("div");
	objCaption.setAttribute('id','lightboxCaption');
	objCaption.style.display = 'none';
	objLightboxDetails.appendChild(objCaption);
	objLightboxDetails.appendChild(objContent);

	var objLabel = document.createElement("div");
	objLabel.setAttribute('id','lightboxLabel');
	objLabel.style.display = 'block';
	objLabel.innerHTML="<div id='lightboxLabeli'><h3>programok</h3></div>";

	objLabel.appendChild(objLightboxmiddle);
//	objLightbox.appendChild(objLabel);

	objLightbox.appendChild(objLabel);

	// create keyboard message
//	var objKeyboardMsg = document.createElement("div");
//	objKeyboardMsg.setAttribute('id','keyboardMsg');
//	objKeyboardMsg.innerHTML = 'press <a href="#" onclick="hideLightbox(); return false;"><kbd>x</kbd></a> 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(initLightbox);	// run initLightbox onLoad