function changeCat(id)
{
   var o = document.getElementById(id);
   //var urll = "getCat-"+ id +".html";
   var urll = "http://www.baje.pl/getCat.php?id="+id;
   
   if(o.style.display=='block')
   {
      o.style.display='none';
      o.innerHTML = '';
   }
   else
   {
	   advAJAX.get({
		  url: urll,
		  onSuccess : function(obj) {
		    o.innerHTML = obj.responseText;
		  },
		  onLoading : function(obj) { o.innerHTML = '<img src="http://www.baje.pl/photos/ajax-loader.gif" style="margin: 20px 0; margin-left:30px;">'; }
		});

	
		for(i=0; i<=allCat.length; i++)
		{
		  document.getElementById(allCat[i]).style.display="none";
		  if(allCat[i] == id)
		     o.style.display="block";
		}
   }
}