Autocomplete options

Autocomplete options

I've got the autocomplete plugin running via JSON and Solr and was wondering whether there was an option, or some way to program in JQuery, to run an automatic query based on the first row displayed when autocomplete returns some suggestions.  I'm trying to produce something like the new Google instant.

Is this possible?  I've seen the selectFirst option and the search method but am not sure how they can be used to give me what I want.

Any pointers would be really appreciated.