// JavaScript Document
//var xmlhttp
var element;

function lock_warning(){

//script = 'http://localhost/yt_dev/book-ajax.php';
script = 'http://www.space4kids.cz/set_session.php?variable=hide_art_warning';

xmlhttp=GetXmlHttpObject();
if (xmlhttp==null)
  {
  alert ("Your browser does not support AJAX!");
  return;
  }

var url=script;
//alert(url);
xmlhttp.onreadystatechange = stateChanged;
xmlhttp.open("GET",url,true);
xmlhttp.send(null);

}

function callAJAX(script,paramName,paramValue,target)
{
element = document.getElementById(target);	
xmlhttp=GetXmlHttpObject();
if (xmlhttp==null)
  {
  alert ("Your browser does not support AJAX!");
  return;
  }
//var url="ajax.php?s=specialc-set&specialc="+str+"&articleid={/literal}{$article->articleid}{literal}";
var url=script;
url=url+'&'+paramName+'='+paramValue;
//alert(url);
xmlhttp.onreadystatechange = stateChanged;
xmlhttp.open("GET",url,true);
xmlhttp.send(null);
}

function stateChanged()
{
if (xmlhttp.readyState==4)
  {
  element.innerHTML=xmlhttp.responseText;
  }
else if (xmlhttp.readyState==3) {
  element.innerHTML='Požadavek probíhá ...';	
  }
else if (xmlhttp.readyState==2) {
  element.innerHTML='Požadavek byl odeslán ...';		
  }
else if (xmlhttp.readyState==1) {
  element.innerHTML='Požadavek byl nastaven ...';		
  }
else {
  element.innerHTML='Požadavek nebyl inicializován ...';
  }
return  xmlhttp.responseText;
}

function GetXmlHttpObject()
{
if (window.XMLHttpRequest)
  {
  // code for IE7+, Firefox, Chrome, Opera, Safari
  return new XMLHttpRequest();
  }
if (window.ActiveXObject)
  {
  // code for IE6, IE5
  return new ActiveXObject("Microsoft.XMLHTTP");
  }
return null;
}