function noblurlinx()
{
	linx = document.getElementsByTagName('a');
	for(i=0; i<linx.length; i++){
		linx[i].onfocus = new Function("if(this.blur)this.blur()");
	}
}

function eolas() {
	var objects = document.getElementsByTagName("object");

	for (var i=0; i<objects.length; i++)
	    objects[i].outerHTML = objects[i].outerHTML;
}

function createCookie(name,value,days)
{
	if (days)
	{
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function WPImage(link, title, width, height)
{
  width += 20;
  height += 60;
  w = ((width < screen.width) ? width : (screen.width - 40));
  h = ((height < screen.height) ? height : (screen.height - 60));

  opts = 'width=' + w + ',height=' + h +',resizable=yes';
  url = '../gallery/image.php?link='
      + escape(link.replace(/ /g, '+'))
      + '&title=' + escape(title.replace(/ /g, '+'));

  window.open(url, 'img', opts);
}


window.onload = function() {
//	eolas(); // v starych verzich IE to spousti 2 krat -> zkusam s document.write
	noblurlinx();
}

/*
by Lokesh Dhakar - http://www.huddletogether.com
edited by kandyman
*/
var loadingImage = './layout/images/loading.gif';
var closeButton = './layout/images/close.gif';
function getPageScroll(){
	var yScroll;
	if (self.pageYOffset) {
		yScroll = self.pageYOffset;
	} else if (document.documentElement && document.documentElement.scrollTop){
		yScroll = document.documentElement.scrollTop;
	} else if (document.body) {
		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){
		xScroll = document.body.scrollWidth;
		yScroll = document.body.scrollHeight;
	} else {
		xScroll = document.body.offsetWidth;
		yScroll = document.body.offsetHeight;
	}
	var windowWidth, windowHeight;
	if (self.innerHeight) {
		windowWidth = self.innerWidth;
		windowHeight = self.innerHeight;
	} else if (document.documentElement && document.documentElement.clientHeight) {
		windowWidth = document.documentElement.clientWidth;
		windowHeight = document.documentElement.clientHeight;
	} else if (document.body) {
		windowWidth = document.body.clientWidth;
		windowHeight = document.body.clientHeight;
	}
	if(yScroll < windowHeight){
		pageHeight = windowHeight;
	} else {
		pageHeight = yScroll;
	}
	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) {
		keycode = event.keyCode;
	} else {
		keycode = e.which;
	}
	key = String.fromCharCode(keycode).toLowerCase();
	if(key == 'x'){ hideLightbox(); }
}
function listenKey () {	document.onkeypress = getKey; }
function showLightbox(objLink)
{
	var objOverlay = document.getElementById('overlay');
	var objLightbox = document.getElementById('lightbox');
	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();
	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.height = (arrayPageSize[1] + 'px');
	objOverlay.style.display = 'block';
	imgPreload = new Image();
	imgPreload.onload=function(){
		objImage.src = objLink.href;
		var lightboxTop = arrayPageScroll[1] + ((arrayPageSize[3] - 35 - imgPreload.height) / 2);
		var lightboxLeft = ((arrayPageSize[0] - 20 - imgPreload.width) / 2);
		objLightbox.style.top = (lightboxTop < 0) ? "0px" : lightboxTop + "px";
		objLightbox.style.left = (lightboxLeft < 0) ? "0px" : lightboxLeft + "px";
		objLightboxDetails.style.width = imgPreload.width + 'px';
		if(objLink.getAttribute('title')){
			objCaption.style.display = 'block';
			objCaption.innerHTML = objLink.getAttribute('title');
		} else {
			objCaption.style.display = 'none';
		}
		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('lightbox');
	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 hide_loading()
{
    var loading = document.getElementById('loading');
    loading.style.display='none';
}
function initLightbox()
{
	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") == "lightbox")){
			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 = '900';
 	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 = '950';
		objLoadingImageLink.appendChild(objLoadingImage);
		imgPreloader.onload=function(){};
		return false;
	}
	imgPreloader.src = loadingImage;
	var objLightbox = document.createElement("div");
	objLightbox.setAttribute('id','lightbox');
	objLightbox.style.display = 'none';
	objLightbox.style.position = 'absolute';
	objLightbox.style.zIndex = '910';
	objBody.insertBefore(objLightbox, objOverlay.nextSibling);
	var objLink = document.createElement("a");
	objLink.setAttribute('href','#');
	objLink.setAttribute('title','Kliknutím zavřete náhled.');
	objLink.onclick = function () {hideLightbox(); return false;}
	objLightbox.appendChild(objLink);
	var imgPreloadCloseButton = new Image();
	imgPreloadCloseButton.onload=function(){
		var objCloseButton = document.createElement("img");
		objCloseButton.src = closeButton;
		objCloseButton.setAttribute('id','closeButton');
		objCloseButton.style.position = 'absolute';
		objCloseButton.style.zIndex = '960';
		objLink.appendChild(objCloseButton);
		return false;
	}
	imgPreloadCloseButton.src = closeButton;
	var objImage = document.createElement("img");
	objImage.setAttribute('id','lightboxImage');
	objLink.appendChild(objImage);
	var objLightboxDetails = document.createElement("div");
	objLightboxDetails.setAttribute('id','lightboxDetails');
	objLightbox.appendChild(objLightboxDetails);
	var objCaption = document.createElement("div");
	objCaption.setAttribute('id','lightboxCaption');
	objCaption.style.display = 'none';
	objLightboxDetails.appendChild(objCaption);
	var objKeyboardMsg = document.createElement("div");
	objKeyboardMsg.setAttribute('id','keyboardMsg');
	objKeyboardMsg.innerHTML = 'Kliknutím zavřete náhled.';
	objLightboxDetails.appendChild(objKeyboardMsg);

	hide_loading();
}

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