pfsense/pfsense — pull request #1054 by marcelloc (2014-04-04 13:08:05+00:00)
Title: fixes Bug #3569

On packages that uses row_helper when user clicks on add or delete button, the page scrolls to top.

It seems something with ajax
http://stackoverflow.com/questions/1061580/jquery-click-on-anchor-element-forces-scroll-to-top

A simple return false after jquery action fixes the unwanted scroll.