code: function sendMessage(e) {
          var txt = $('#msgtxt').val().trim();
  
          if(!txt) return;
  
          $('#messages').append(createMsgBox(txt));
  
          socket.emit('sendmsg', txt, function(evtJson) {
              var evt = JSON.parse(evtJson),
              reply = evt['Reply-Text'].split(' '), //0 = +OK, 1 = uuid
              $elm = $('#messages').children().last().removeClass('sending');
  
              if(reply[0] == '+OK')
                  $elm.addClass('sent').data('uuid', reply[1]);
              else
                  $elm.addClass('failed').data('error', evt['Reply-Text']);
          });
  
          $('#msgtxt').val('');
      }
docs: send a text