var private_message_user = "all";
var private_message_user_id = null;

function set_private_message_user (user_login , user_id)
{
    var sel = $('private_message_user');
    sel.options[1].style.display = "block";
    sel.options[1].text = user_login;
    sel.options[1].value = user_id;
    sel.selectedIndex = 1;
    $("chat_message").focus();
    private_message_user = user_login;
    private_message_user_id = user_id;
}

function private_message_user_changed ()
{
    var sel = $('private_message_user');
    private_message_user  = sel.options[sel.selectedIndex].text;
    private_message_user_id = sel.options[sel.selectedIndex].value;
}

function send_chatbox_message ()
{
    if (private_message_user == "all")
        xajax_send_chatbox_message (document.getElementById('chat_message').value , null);
    else
        xajax_send_chatbox_message (document.getElementById('chat_message').value , private_message_user_id);

    document.getElementById('chat_message').value = "";
}