var produkty = createHttpRequestObject();

 function createHttpRequestObject()
{
 var HttpRequestObject;
if(window.ActiveXObject)
{ 
 try
 {
 HttpRequestObject = new ActiveXObject("Microsoft.XMLHTTP");
 
 }
 catch (e)
   {
    HttpRequestObject = false;	
	 
   }  
}
 else
{
  try
   {
     HttpRequestObject = new XMLHttpRequest(); 
	 		
   }
  catch (e)
  {
  HttpRequestObject = false;
  
  }
}

 return HttpRequestObject;
}



function ajax_dagma(adres_argI, div_id_argI)
{
 var rand = parseInt(Math.random()*99999999);
 adres = adres_argI +'?time=' + rand;

 produkty.open('get',adres , true);
 produkty.onreadystatechange = function()
 {
 
    dagmaupdate(div_id_argI);
 }
 produkty.send(null);   
}

function dagmaupdate(div_id)
{ 

 if(produkty.readyState == 4)   
    if((produkty.status == 200)||(window.location.href.indexOf("http") ==-1))       
	    {
	   
		  document.getElementById(div_id).innerHTML =  produkty.responseText; 
	     
		  setTimeout("ajax_dagma('dagmabase.php', 'dagmadiv');",20000);		  		
			
		  }  	else  setTimeout("ajax_dagma('dagmabase.php', 'dagmadiv');",20000);	
}