function zadani_zmena( anketa ){
	
	var url = 'http://www.horor.cz/anketa.php?anketa=' + anketa;
	 if (window.ActiveXObject)
        {
          httpRequest = new ActiveXObject("Microsoft.XMLHTTP");
        }
        else
        {
          httpRequest = new XMLHttpRequest();
        }
        httpRequest.open("GET", url, true);
        httpRequest.setRequestHeader( "Content-type", "text/html" );
        httpRequest.onreadystatechange= function () {processRequest(); } ;
        httpRequest.send(null);
}

function processRequest(){
if (httpRequest.readyState == 4)
  {
    if(httpRequest.status == 200)
    {
      httpRequest.responseText; 
      
    }
    else
    {
        alert("Chyba pri nacitani stanky"+ httpRequest.status +":"+ httpRequest.statusText);
    }
    
  }	
	
}