hydna chat

var chat = $('#textchat');

    chat.infoMessage(nick, msgConnecting);

    saveChatMessage(msgConnecting);

    // open a channel to hydna in read/write mode.
    // NOTE: You must replace <simple-chat.hydna.net> with your actual domain
    // to be able to run this script.
    var channel = new HydnaChannel('telemedico.hydna.net/' + consultHash, 'rw');

    // handle packets as they are received over channel
    channel.onmessage = function(event) {
        // event.data should contain a JSON-encoded object. We'll decode it and
        // look at it's type to see what to do next.
        var packet = JSON.parse(event.data);
        switch(packet.type) {
            case 'join':
                chat.infoMessage(packet.nick, msgConnected);
            break;
            case 'msg':
                chat.chatMessage(packet.nick, packet.message);
            break;
        }
    };

    channel.onerror = function(err) {
        chat.errorMessage('An error has occured. ' + err.message);
    }

    channel.onclose = function(err) {
        chat.infoMessage(nick, 'Connection closed. Please reload page.');
    }

    channel.onopen = function() {

        channel.send(JSON.stringify({
            nick: nick,
            type: 'join'
        }));

        saveChatMessage(msgConnected);
    }

$('form#chat').submit(function(event) {
        event.preventDefault();
        var input = $('#input_text', this);
        if (input.val()) {
            channel.send(JSON.stringify({
                nick: nick,
                type: 'msg',
                message: input.val()
            }));

            saveChatMessage(input.val());

            // clear the input box after sending the message.
            input.val('');
        }
    });