I have a page that lists items in a portfolio using
<% control ChildrenOf(portfolio) %>
(do things)
<% end_control %>
Each item is floted left and renders as a three column layout like this http://spiro.se/portfolio/
My problem is that since the portfolio items are not of equal height, I need to insert a <hr > after every third item. How do I do that in silverstripe templates?