Can I autoFocus fire on roll off

Can I autoFocus fire on roll off

I want to have the first element in an autocomplete list autoFocused when the list is open and a user rolls off. 

Currently if you use autoFocus and use your mouse to roll over the list and then roll off, no item is selected. I'd like to have the first item in a list become autoFocused again if a user uses their mouse to roll off.

Is this possible?

Thanks for any help.

Also you can see the jQuery functionality here.

http://jqueryui.com/autocomplete/