function showForm()  {
    document.getElementById("textArea").style.display=""; 
    document.getElementById("submenu").style.display="none"; 
}

function hideForm() {
    document.getElementById("textArea").style.display="none"; 
    document.getElementById("submenu").style.display=""; 
}

function chkMessage() {
    if (document.guestbook.name.value == "") {
        alert(EnoName);
        document.guestbook.name.focus();
        return false;
    } else if (document.guestbook.message.value == "") {
        alert(EnoMessage);
        document.guestbook.message.focus();
        return false;
    } else {
        return true;
    }
}