// Get the HTTP Object
function getHTTPObject(){
if (window.ActiveXObject) return new ActiveXObject("Microsoft.XMLHTTP");
else if (window.XMLHttpRequest) return new XMLHttpRequest();
else {
alert("Your browser does not support AJAX.");
return null;
}
}
// Change the value of the ukazka div
function setOutput(){
if(httpObject.readyState == 4){
document.getElementById('ukazka').innerHTML = httpObject.responseText;
}
}

function swapWallList(linkObj)
{
	var linkId = linkObj.id;
  //var headlineObj = document.getElementById('ukazka');

httpObject = getHTTPObject();
if (httpObject != null) {

  if (linkId == 'tipy')     {httpObject.open("GET", "http://www.wallpaper.cz/primo/scriptForAjax.php?page=tipy",    true);
                           
                            httpObject.send(null);                            
                            }
	
  if (linkId == 'novinky')  {httpObject.open("GET", "http://www.wallpaper.cz/primo/scriptForAjax.php?page=novinky", true);
                            
                            httpObject.send(null);   
                            }
	
  if (linkId == 'top')      {httpObject.open("GET", "http://www.wallpaper.cz/primo/scriptForAjax.php?page=top",   true);  
                           
                            httpObject.send(null);    
                            }
httpObject.onreadystatechange = setOutput;	

  }

}
var httpObject = null;