obr1=new Image(); obr1.src="/images/menu/cz/uvod-po.png";
obr1=new Image(); obr1.src="/images/menu/cz/uvod-pred.png";
obr1=new Image(); obr1.src="/images/menu/cz/produkty_po.png";
obr1=new Image(); obr1.src="/images/menu/cz/produkty_pred.png";
obr1=new Image(); obr1.src="/images/menu/cz/cennik_po.png";
obr1=new Image(); obr1.src="/images/menu/cz/cennik_pred.png";
obr1=new Image(); obr1.src="/images/menu/cz/kariera-pred.png";
obr1=new Image(); obr1.src="/images/menu/cz/kariera-po.png";
obr1=new Image(); obr1.src="/images/menu/cz/navstevna_kniha-pred.png";
obr1=new Image(); obr1.src="/images/menu/cz/navstevna_kniha-po.png";
obr1=new Image(); obr1.src="/images/menu/cz/kontakt-pred.png";
obr1=new Image(); obr1.src="/images/menu/cz/kontakt-po.png";

obr1=new Image(); obr1.src="/images/menu/sk/uvod-po.png";
obr1=new Image(); obr1.src="/images/menu/sk/uvod-pred.png";
obr1=new Image(); obr1.src="/images/menu/sk/produkty_po.png";
obr1=new Image(); obr1.src="/images/menu/sk/produkty_pred.png";
obr1=new Image(); obr1.src="/images/menu/sk/cennik_po.png";
obr1=new Image(); obr1.src="/images/menu/sk/cennik_pred.png";
obr1=new Image(); obr1.src="/images/menu/sk/kariera-pred.png";
obr1=new Image(); obr1.src="/images/menu/sk/kariera-po.png";
obr1=new Image(); obr1.src="/images/menu/sk/navstevna_kniha-pred.png";
obr1=new Image(); obr1.src="/images/menu/sk/navstevna_kniha-po.png";
obr1=new Image(); obr1.src="/images/menu/sk/kontakt-pred.png";
obr1=new Image(); obr1.src="/images/menu/sk/kontakt-po.png";

obr1=new Image(); obr1.src="/images/menu/en/uvod-po.png";
obr1=new Image(); obr1.src="/images/menu/en/uvod-pred.png";
obr1=new Image(); obr1.src="/images/menu/en/produkty_po.png";
obr1=new Image(); obr1.src="/images/menu/en/produkty_pred.png";
obr1=new Image(); obr1.src="/images/menu/en/cennik_po.png";
obr1=new Image(); obr1.src="/images/menu/en/cennik_pred.png";
obr1=new Image(); obr1.src="/images/menu/en/kariera-pred.png";
obr1=new Image(); obr1.src="/images/menu/en/kariera-po.png";
obr1=new Image(); obr1.src="/images/menu/en/navstevna_kniha-pred.png";
obr1=new Image(); obr1.src="/images/menu/en/navstevna_kniha-po.png";
obr1=new Image(); obr1.src="/images/menu/en/kontakt-pred.png";
obr1=new Image(); obr1.src="/images/menu/en/kontakt-po.png";

obr1=new Image(); obr1.src="/images/header/cz-pred.png";
obr1=new Image(); obr1.src="/images/header/cz-po.png";
obr1=new Image(); obr1.src="/images/header/en-pred.png";
obr1=new Image(); obr1.src="/images/header/en-po.png";
obr1=new Image(); obr1.src="/images/header/sk-pred.png";
obr1=new Image(); obr1.src="/images/header/sk-po.png";

function kontakt () {
document.getElementById('td11').style.display = 'none';
document.getElementById('zobrazenie2').style.display = 'none';
document.getElementById('zobrazenie').style.display = 'block';
}

function PridatNavstev(){

var form=document.kniha;
var chyba=false;
var meno = form.meno.value;
var text = form.text.value;
var email = form.email.value;

if(!meno || !text){
chyba = true;
}
if(email && !/([a-zA-Z0-9_\.-]+\@[a-zA-Z0-9_\.-]+\.[a-zA-Z0-9_\.-]+)/.test(email)){
chyba = true;
alert("Nesprávne zadaný E-mail");
form.email.focus();
}

  if(!chyba){
  NacitajObrah( '&strana=1&meno='+meno+'&text='+text+'&email='+email );
  form.reset();
  }

}

function NacitajObrah( get ){


AjaxPOST( "/navstevna.php" , "obsahnavs_kniha" ,  get);
}


  var http_request = false;
function AjaxPOST( url , element , parameters){

      http_request = false;
      if (window.XMLHttpRequest) {
         http_request = new XMLHttpRequest();
         if (http_request.overrideMimeType) {

            http_request.overrideMimeType('text/html');
         }
      } else if (window.ActiveXObject) { // IE
         try {
            http_request = new ActiveXObject("Msxml2.XMLHTTP");
         } catch (e) {
            try {
               http_request = new ActiveXObject("Microsoft.XMLHTTP");
            } catch (e) {}
         }
      }
      if (!http_request) {
         alert('Cannot create XMLHTTP instance');
         return false;
      }

      http_request.onreadystatechange = function() {

  if (http_request.readyState==4 && http_request.status==200){
    document.getElementById( element ).innerHTML=http_request.responseText;
  } else {
    document.getElementById( element ).innerHTML='<div style="text-align: center;margin: 100px 0px;"><img src="/images/loading.gif"></div>';
  }

   }

parameters = '?test=1' + parameters;

      http_request.open('POST', url, true);
      http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
      http_request.setRequestHeader("Content-length", parameters.length);
      http_request.setRequestHeader("Connection", "close");
      http_request.send(parameters);

}

function AjaxGET( subor , element , url1){

var xmlhttp=GetXmlHttpObject();
if (xmlhttp==null){
  alert ("Browser does not support HTTP Request");
  return;
  }


var url=subor + "?sid=" + Math.random() + url1;

xmlhttp.onreadystatechange=function(){

  if (xmlhttp.readyState==4 && xmlhttp.status==200){
    document.getElementById( element ).innerHTML=xmlhttp.responseText;
  } else {
    document.getElementById( element ).innerHTML='<div style="text-align: center;margin: 100px 0px;"><img src="/images/loading.gif"></div>';
  }
}
xmlhttp.open("GET",url,true);
xmlhttp.send(null);

}


function GetXmlHttpObject(){
if (window.XMLHttpRequest){
  return new XMLHttpRequest();
  }
if (window.ActiveXObject){
  return new ActiveXObject("Microsoft.XMLHTTP");
  }
return null;
}