adds fixed bar js

app/assets/javascripts/application.js

@@ -46,6 +46,7 @@
 //= require valuation_budget_investment_form
 //= require valuation_spending_proposal_form
 //= require embed_video
+//= require fixed_bar
 //= require banners
 //= require social_share
 //= require custom
@@ -70,6 +71,7 @@ var initialize_modules = function() {
   App.ValuationBudgetInvestmentForm.initialize();
   App.ValuationSpendingProposalForm.initialize();
   App.EmbedVideo.initialize();
+  App.FixedBar.initialize();
   App.Banners.initialize();
   App.SocialShare.initialize();
 };

app/assets/javascripts/fixed_bar.js.coffee

@@ -0,0 +1,13 @@
+App.FixedBar =
+  initialize: ->
+    $('[data-fixed-bar]').each ->
+      $this = $(this)
+      fixedBarTopPosition = $this.offset().top
+
+      $(window).on 'scroll', ->
+        if $(window).scrollTop() > fixedBarTopPosition
+          $this.addClass('is-fixed')
+          $("#check-ballot").css({ 'display': "inline-block" });
+        else
+          $this.removeClass('is-fixed')
+          $("#check-ballot").hide()