Getting aditional data from auto_complete

Hi again.
I’m using auto_complete to search people in my DB. I have one input
field with auto_complete that search and shows first_name and last_name.
So, showing first and last name is good for the view but in my
controller what I need to know is the id.

So what I need is auto completing first and last name but after that
processing just the id.

thx

I already found the answer in
http://ricardo.pacheco.name/blog/articles/2006/09