function Chat() {

    this.client = undefined;
    this.destinationListen = undefined;
    this.destinationSend = '/queue/chat.messages';

    this.sendMessage = function(user_id, message)
    {
        this.client.send(this.destinationSend, {}, JSON.stringify({
            command: 'user-message',
            channel_id: this.destinationListen,
            recipient_user_id: user_id,
            message: message
        }));
    };

    this.receiveMessage = function(data)
    {

    };

    this.init = function()
    {
        if(window.WebSocket) {
            this.destinationListen = $('#queueName').val(); //@todo
            this.client = Stomp.client('ws://localhost:61614');
            //this allows to display debug logs directly on the web page
            this.client.debug = function(str) {
                $("#debug").append(str + "\n");
            };

            // the client is notified when it is connected to the server.
            this.client.connect('guest', 'password', function(frame) {
                this.debug("connected to Stomp");
                this.subscribe(this.destinationListen, (function(message) {
                    var data = eval('('+message.body+')');
                    switch(data.command) {
                        case 'user-message':
                            ????.receiveMessage(data);
                            break;

                        default:
                            alert('unknown command: ' +data.command);

                    }
                }));
        });
    }
}