text: <!--
  
    This example adapted from Netty project
  
   * Copyright 2010 Red Hat, Inc.
   *
   * Red Hat licenses this file to you under the Apache License, version 2.0
   * (the "License"); you may not use this file except in compliance with the
   * License.  You may obtain a copy of the License at:
   *
   *    http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
   * License for the specific language governing permissions and limitations
   * under the License.
   *
   -->
  
  <html>
  <head><title>Web Socket Test</title></head>
  <body>
  <script>
      var socket;
      if (window.WebSocket) {
          socket = new WebSocket("ws://localhost:8080/myapp");
          socket.onmessage = function(event) {
              alert("Received data from websocket: " + event.data);
          }
          socket.onopen = function(event) {
              alert("Web Socket opened!");
          };
          socket.onclose = function(event) {
              alert("Web Socket closed.");
          };
      } else {
          alert("Your browser does not support Websockets. (Use Chrome)");
      }
  
      function send(message) {
          if (!window.WebSocket) {
              return;
          }
          if (socket.readyState == WebSocket.OPEN) {
              socket.send(message);
          } else {
              alert("The socket is not open.");
          }
      }
  </script>
  <form onsubmit="return false;">
      <input type="text" name="message" value="Hello, World!"/>
      <input type="button" value="Send Web Socket Data" onclick="send(this.form.message.value)"/>
  </form>
  </body>
  </html>
  