               <li><code>/echo [message]</code> - Echo a message back</li>
                    <li>Any other text will be broadcast to all clients</li>
                </ul>
            </div>

            <div id="messages"></div>

            <div class="input-group">
                <input id="messageInput" type="text" placeholder="Type your message here..." disabled />
                <button id="sendButton" onclick="sendMessage()" disabled>Send</button>
                <button onclick="sendPing()">Ping