function ajax_sitescontent(idCath)
{
    advAJAX.setDefaultParameters({
    onInitialization : function(obj) { document.getElementById(obj.tag).innerHTML = "Przygotowywanie..."; },
    onLoading : function(obj) { document.getElementById(obj.tag).innerHTML = "<br/><br/><br/><br/><img src=gfx/loading.gif border=0>"; },
    onSuccess : function(obj) { document.getElementById(obj.tag).innerHTML = "" + obj.responseText; },
    onError : function(obj) { document.getElementById(obj.tag).innerHTML = "Błąd..."; }
    });
 advAJAX.get({ url: 'sitestext1.php?idCath='+idCath, tag: 'ajaxcontent1'});
 advAJAX.get({ url: 'sitestext.php?idCath='+idCath, tag: 'ajaxcontent'});
 advAJAX.get({ url: 'sitestext2.php?idCath='+idCath, tag: 'ajaxcontent2'});
}