var OAJAX=false;

if (window.XMLHttpRequest) 
{ 
   OAJAX = new XMLHttpRequest(); 
}  else if (window.ActiveXObject) 
{ 
   OAJAX = new ActiveXObject("Microsoft.XMLHTTP"); 
}  

function wykonaj()
{
 if(OAJAX) 
 {
    var l = document.getElementById('adres_url');
    
    OAJAX.open("GET", 'index.php?adres_url='+l.value);

    OAJAX.onreadystatechange = function() 
    {
       if (OAJAX.readyState == 4)
       {    
       	  document.getElementById('overlay').style.visibility = "hidden";
       	  document.getElementById('wait').style.visibility = "hidden";
       	  if (OAJAX.responseText.length<10)
       	     document.location="index.php?bufor=1&error=1&adres_url="+l.value;
    	     else
       	     document.location="index.php?bufor=1&adres_url="+l.value;
       } else
       {
         document.getElementById('overlay').style.visibility = "visible";
       	document.getElementById('wait').style.visibility = "visible";
		 }
    } 
    document.getElementById('overlay').style.visibility = "visible";
    document.getElementById('wait').style.visibility = "visible";
    OAJAX.send(null); 
    return false;
 } return true;
}

function ce_pokaz(ids,id,a,b)
{
	var e=document.getElementById(id);	
	var s=document.getElementById(ids);
	if (e)
	{
		if (e.style.display=="none") 
		{
					e.style.display="block";
					s.innerHTML="&raquo;&raquo; "+b;
		} else 
		{
					e.style.display="none";
					s.innerHTML="&raquo;&raquo; "+a;
		}
	}
}