Validate Plugin + Jquery UI Icons

Validate Plugin + Jquery UI Icons

Hello,
i'm playing around with the validate plugin and this demo:
http://jquery.bassistance.de/validate/demo/milk/
What I want, is a simple icon next to the field like:

Firstname ___________ (ui-icon-error OR ui-icon-check)
I don't want the title or message to be showed.
Can I do that some how ?