function bar(url){
    wasOpen  = false;
    win = window.open(url);    
    return (typeof(win)=='object')?true:false;
  }

function okno() 
{
window.open("","okno","toolbar=no,location=no,directories=no,status=yes,scrollbar=yes,menubar=yes,resizable=yes,width=610,height=430,top=10,left=280");
}

function okno2() 
{
window.open("","okno2","toolbar=no,location=no,directories=no,status=yes,scrollbar=yes,menubar=yes,resizable=yes,width=500,height=490,top=10,left=280");
}

function okno3() 
{
window.open("","okno3","toolbar=yes,location=yes,directories=yes,status=yes,scrollbar=yes,menubar=yes,resizable=yes,width=620,height=400,top=10,left=280");
}

function hodnoceni() 
{
window.open("","hodnoceni","toolbar=no,location=no,directories=no,status=no,scrollbar=no,menubar=no,resizable=no,width=170,height=180,top=150,left=280");
}



    function Inicializace()
    {
       document.getElementById("upozorneni").style.visibility = "hidden";
       document.getElementById("ponacteni").style.visibility = "visible";
       
    }