void MainChatTab::OnUserDisconnected( User& user )
{
	ChatPanel* panel = GetUserChatPanel( user.GetNick() );
	if ( panel != 0 )
	{
		panel->OnUserDisconnected();
		panel->SetUser( 0 );
		//TODO disable send button (koshi)
	}
	if ( m_server_chat != 0 )
	{
		m_server_chat->Parted( user, _T("") );
	}
}