triggering javascript event when form is submitted

I have a form on a page which is loaded into an iframe (modal) and i'd like to close the modal once the form has been submitted, is there some event fired (in javascript) which i can listen to and close the modal upon successful submission?

Thanks!

thanks, but finally using that:

$(document).bind('gform_confirmation_loaded', function(event, form_id){
	$('#form').delay(3000).fadeOut(600);
});