public static void broadcast(Message myMessage, ChatRoom cr) // Send to each client of a chatroom
 {
     for (int i = 0; i < cr.count(); i++)
     {
         for (int j = 0; j < TcpClientList.Count; j++)
         {
             if (cr.chatter(i) == chatterList[j])
             {
                 TcpClient client = (TcpClient)TcpClientList[j];
                 MessageConnection.sendMessage(client.GetStream(), myMessage);
             }
         }
     }
 }