function right(e)
{
    if (navigator.appName == 'Netscape' && (e.which == 3 || e.which == 2))
        return false;
    else if (navigator.appName == 'Microsoft Internet Explorer' && (event.button == 2 || event.button == 3))
    {
        alert("[ Warning !!!, you can't use right click ]");
        return false;
    }
    return true;
}
document.onmousedown = right;
document.onmouseup = right;

function verifyPostBoard()
{
    var strPostBoard = document.postBoardForm.postBoardTopic.value;

    if (strPostBoard == "")
    {
        alert('คุณไม่ได้ใส่ หัวข้อ Post Board');
        return false;
    }
    else{
        alert('Post Board ของคุณถูกส่งแล้ว');
        return true;
    }
}

function openNewWindow(url)
{
        window.open(url,"newwindow");
}