[Typo3-dev] Observe creation of content elements

[Martin Herber]

Hi folks,

I want to implement an extension which notifies subscribed users about
published tt_news items in realtime via Instant Messaging (I'll use jabber's
XMPP as the underlying transport which can easily be mapped to ICQ, AIM or
MSM)

My question:
How can I associate the creation of a tt_news content item with a function
call to a script residing in my extension? To achiev the wanted practicality
I could patch the typo3 core skripts, called after saving the content item
in the backend(->typo3/alt_doc.php...)

I believe this is not a nice way to achieve my goal and a reason for
limiting the reuse of my extension in the community. I'm relatively new to
type3 and haven't found information if there is a proper way to implement
this practiality . I would be very delighted to get response.

Best greetings Martin