Ofer:
There's no "<In>" with the SOAP Web Services. Try this:
If you look at the Net tab in Firebug (or use Fiddler, etc.) you should see some sort of error from the operation in the response.
M.
There's no "<In>" with the SOAP Web Services. Try this:
CAMLQuery: "<Query><Where><Eq><FieldRef Name='HRLocations' LookupId='TRUE'/><Value Type='Integer>"+location+"</Value></Eq></Where></Query>",M.