[jQuery] Can the $.ajax(properties) go across domains?

[jQuery] Can the $.ajax(properties) go across domains?


I'm trying to get a json object from a sub-domain but keep getting a
error (cross-domain / cross-site scripting error).
Any ideas, can the $.ajax(properties) function handle jsonp?
A sample of my code can be viewed at http://matthewmoore.info/jssamples/ajax-code.html
Thanks for your help in advance.
Matthew