Jquery :: Google Analytics Track Form Submissions

I have a form that captures users email addresses when they sign up for a enewsletter. I want to add this form submission into my google analytics and from what I have read the best way to do this is by tracking an event? I have added some jquery that I mashed together and I just want to know will this work? I added it today and I can only find out if it has truely worked by waiting 24 hours. I downloaded a program called fiddler (recommended in dot net magazine) to see tracking requests in action instead of waiting 24 hours but I can't see any of the field names displaying like AMF signup?

<script type="text/javascript">
try {
var pageTracker = _gat._getTracker("UA-8736163-1");
pageTracker._trackPageview();
} catch(err) {}$(document).ready(function() {
$("#pre-book").attr("onSubmit", "pageTracker._trackEvent('Signup Forms','AMF Signup','Newsletter',2.0);");
});
</script>