JQuery :: Combining .live With DelayedObserver?

I am using a delayedObserver which works great, but I can't figure out how to use it when the field I am binding is loaded via ajax. So ideally, something like this:

$('[data-live_form_field]').live
.delayedObserver(0.35, function(value, element){
$(this).parents('form:first').submit();
});

This would bind any form elements with the live_form_field data attribute to the observer and submit the form. The code doesn't work though since that isn't the right syntax for the .live method.