lowpro x non-ajax post in a rails application

Question

Hi, i have a form, that because it has a upload file, i had to switch from ajax to iframe post to emulate an ajax. The problem is that it has a component with lowpro to hide and show a button with onmouseover and onmouseout.

Everything work fine. The problem is that after that i submit the form, with iframe, after the page reload, the lowpro stops to work. It's the same behavior that when you have a AJAX call and you don't enable the option Event.addBehavior.reassignAfterAjax = true;

I tried something with the Event.addBehavior.relaod() but without success. any idea?