text: var stompClient = null;
  
  function setConnected(connected) {
      $("#connect").prop("disabled", connected);
      $("#disconnect").prop("disabled", !connected);
      if (connected) {
          $("#conversation").show();
      }
      else {
          $("#conversation").hide();
      }
      $("#greetings").html("");
  }
  
  function connect() {
      var socket = new SockJS('/chatroom-websocket');
      stompClient = Stomp.over(socket);
      stompClient.connect({}, function (frame) {
          setConnected(true);
          console.log('Connected: ' + frame);
          stompClient.subscribe('/topic/chatroom', function (message) {
              showGreeting(message);
          });
      });
  }
  
  function disconnect() {
      if (stompClient !== null) {
          stompClient.disconnect();
      }
      setConnected(false);
      console.log("Disconnected");
  }
  
  function sendName() {
      stompClient.send("/app/sendAll", {}, JSON.stringify({'content': $("#name").val()}));
  }
  
  function showGreeting(message) {
      $("#greetings").append("<tr><td>" + message + "</td></tr>");
  }
  
  $(function () {
      $("form").on('submit', function (e) {
          e.preventDefault();
      });
      $( "#connect" ).click(function() { connect(); });
      $( "#disconnect" ).click(function() { disconnect(); });
      $( "#send" ).click(function() { sendName(); });
  });
  
  