the trigger idea was smart, however I wanted to do it the jQuery way, so here is a small function which will allow you to keep chaining.
$.fn.resetForm = function() {
return this.each(function(){
this.reset();
});
}
Then just call it something like this
$('#divwithformin form').resetForm();
or
$('form').resetForm();
and of course you can still use it in the chain
$('form.register').resetForm().find('input[type="submit"]').attr('disabled','disabled')