How can I end correctly the connection?

[aang7]

I'm using the browser client and calling client.end() to disconnect the client,
but the callback of connected are calling each time I reconnect...
So for example, I initialize the connection and all good, then I close the connection (or at least I thougth I was closing it) and initialize another connection and my callbacks are excuting twice.. I tried starting a new connection with a new id, because if try to reconnect, the client is connectin and reconnecting, so it seems like it's trying to connect using the same connection id...
Any idea of what could be the problem..? Thank you.