function MQTTConnect(){
        console.log("connecting to"+ host);
        mqtt = new Paho.MQTT.Client(host,deviceId);
        var options = {
            timeout : 30,
            userName:deviceId,
            password:oAuthToken,
            onSuccess:onConnect,
            onFailure:onFailure,
        };
        mqtt.onMessageArrived = onMsgArrived;
        mqtt.connect(options);


    }

unction onConnect(){
        //once connected create a subscription adn send msg

         console.log("connected");
        var subscribeOptions = {
            qos: 1,  // QoS
            onSuccess: onSuccessCallback,
            onFailure: onFailureCallback,
            timeout: 30
        };

        var subTopic = 'iot/push/'+deviceId;
        console.log(subTopic);
        mqtt.subscribe(subTopic,subscribeOptions);

    }