Connecting the jabber server automatically after internet reconnected

[srinivasan]

Hello,

We integrating the jabber chat in our web application, we developing a customized client chat for our need.

So, while login with the application we will automatically logged into the jabber server.
We will retrieve the incoming messages and roster update with this login only.
We using comet js for transformation of jabber data's - it means catching the data from the jabber and manipulating into our application (wherever required)

Questions:
To know the current status of the logged user status (Live or Offline) and to know the other users status.
Whether we can achieve this by one login - the login which we used to connect the jabber server or we should use another login ( at the same time ) to get these details. (With two logins - not prefered one)

Also, how does we can handle the internet disconnection thing in the web application. It means if am logged into my web application - by the time i was logged into the jabber server too.
If suppose the internet is disconnected i need to reconnect the jabber server again once the internet is connected back.

so, i need to update the correct status to the other online users in my application.

Please suggest your valid points.

Thanks and Regards,
Srinivasan M