Have you seen the VuFind ILS driver spec?  This might answer your question (or at least prove to be a useful reference):

 

http://vufind.org/wiki/building_an_ils_driver

 

I assume you're referring to the availability statuses shown on search results.  Javascript embedded in the results page triggers off an AJAX call which sends down an array of IDs, which in turn get passed to the getStatuses method of the ILS driver.

 

Apologies if I'm misunderstanding your question -- please let me know if you still need more information.

 

thanks,

Demian

 

From: Andrews, Mark J. [mailto:mark.j.andrews@creighton.edu]
Sent: Tuesday, January 26, 2010 1:49 PM
To: vufind-tech@lists.sourceforge.net
Subject: [VuFind-Tech] Gettings holdings for a list of id's

 

When VuFind asks the upstream ILS for piece-level holdings by id, how are the id’s separated?

 

Thanks,

 

Mark A. @ Creighton U.