function mjmenu(t)
{i=document.getElementById(t);
 if (i.style.display == "inline")
  i.style.display="none";
  else
   i.style.display="inline" ;
   
i=document.getElementById("t1");
if (t!="t1")  i.style.display="none";
i=document.getElementById("t2");
if (t!="t2")  i.style.display="none";
i=document.getElementById("t3");
if (t!="t3")  i.style.display="none";
i=document.getElementById("t4");
if (t!="t4")  i.style.display="none";
}


function wyjscie()
{ i=document.getElementById("zm1");
  alert(document.parent.location);


 //i=document.getElementById("t1");
 //if (i.style.display == "inline")

}
function wejscie()
{alert(window.location.href);

}

function ukryj (x)
{
   _txt = document.getElementById(x);
   
   if (_txt.className=="widoczny")
   {
      _txt.className="ukryty";
   } 
   else
   { 
      _txt.className="widoczny";
   } 
}