function comment_submit()
{
    var ok = true;

    if (document.getElementById("w2pName").value == "")
    {
        ok = false;
        alert("Nelze odelat nepodepsanou zprávu!");
    }

    if (ok && document.getElementById("w2pText").value == "")
    {
        ok = false;
        alert("Nelze odelat práznou zprávu!");
    }

    var h = document.getElementById("hash").value;
    url = "/actions/CodeCheck.aspx?code=" + document.getElementById("w2pCode").value + "&h=" + h;
    
    var request;
    if( window.ActiveXObject) {    
    request = new ActiveXObject("Microsoft.XMLHTTP");
    }
    else if( window.XMLHttpRequest) {    
    request = new XMLHttpRequest();
    }
     
    request.open("GET", url, false);
    request.send(null);

    var response = request.responseText;
    if (ok && response != "OK")
    {
        ok = false;
        alert("Chybně opsaný kontrolní kód!");    
    }
    
    
    if(ok)  document.getElementById("frmComment").submit();
}

function showComment()
{
    document.getElementById("commentform").className = "";
    document.getElementById("commentnew").className = "hidden";
}

function hideComment()
{
    document.getElementById("commentform").className = "hidden";
    document.getElementById("commentnew").className = "";
}