[TYPO3] Ajax for an Onlineuserlist

[Andreas Wengrzik]

Hey there...

I dont know how to implement ajax in an extension.
Umm where to start... Its an really easy extension which reads the 
current users and killduplicated entrys in the fe_users table.
The output is rendered into an html template.

Now the user has to reload the whole page to get the actual online user 
list.

I think with the xajax lib it could be easy to reload this single plugin 
without page refresh?

Anyone can give me a hint?

The xajax-tut i tried but doesnt find the right way for my simple extension.

Thanks and have a nice day!

-andreas w.