cycle startup after ajax

cycle startup after ajax

hi,

I use xajax to populate my site containers and after creating cycle-containers I need to make them running. So I tried to call

$('#systemmessages').cycle({
fx: 'scrollUp',
timeout: 6000,
delay: -2000
});

...but my browser is teeling me "$("#systemmessages").cycle is not a function", although I DID load the js-file within the header.
How can I rebind/reload/activate/whatever this cycle-class after a ajax-call?
I already tried a wrapper for my activation but it failed.

Thanks in advance!

regards
marcus