Using Font Awesome in a form

[dodge35]

I am trying to use Font Awesome in a form I am creating. The form is basically a multiple choice quiz that will have a question followed by possible correct answers with radio buttons.I want to incorporate Font Awesome instead of the radio buttons in the quiz.(http://fortawesome.github.com/Font-Awesome/) I want to use the icon-circle and icon-circle-blank from the font awesome collection so when the user clicks on an answer JavaScript will change the icon to "icon-circle" instead of the "icon-circle-blank". Does anyone have any ideas and or best practices on how do this?Thank you!