A simple MQTT client demo written in Javascript that uses webSockets to connect to an MQTT Broker, it allows you to receive MQTT data directly into a web browser in real time.
Youtube: http://www.youtube.com/watch?v=P6pUGky5R40
More info.: http://ediy.com.my/blog/item/143-store-messages-from-mosquitto-mqtt-broker-into-sql-database