Extending autocomplete

Hi there,

I'm using the code you can find here:
http://jqueryui.com/demos/autocomplete/#remote-jsonp

to give my users the possibility to choose their city and country. Everything works fine at this moment, except I would like to add also the country to an input field called "country".

Is there a way I can achieve this with the same code?

Thanks in advance for any help it's appreciated.