Rails render partial with progress bar

I'm running Rails 4 and am trying to use a bootstrap form wizard. The thing about the form wizard is that not all of its tabs should be displayed at all times.

The form wizard is in a partial that I render via $("#tab3").html("<%= j(render partial: 'wizard' ) %>"); in update_forms.js.erb (called via an ajax call).

Everything works well in this except the progress bar doesn't display (it is 0) unless I refresh the page. Any thoughts on how I can set the progress bar when rendering the partial?

Thanks!