[jQuery] jQuery asynchronous responses

Hi guys. jQuery docs(<a href="http://docs.jquery.com/Ajax/jQuery.ajax#options"> http://docs.jquery.com/Ajax/jQuery.ajax#options</a>) present jQuery.ajax option with asynchronous requests by default. Is it possible with jQuery to do asynchronous responses? I'll want to display asynchronous server side responses after submit a form.
Cheers
Marco Antonio