have to use new_report css class now, because that's what it is on the engine-side

app/views/cost_reports/index.rhtml

@@ -14,7 +14,7 @@
 <h2><%= l(:label_cost_report) %></h2>
 <% html_title( l(:label_cost_report) ) %>
 
-<% form_for @query, :url => {:controller => 'cost_report', :action => 'new' }, :html => {:id => 'query_form', :method => :post} do |query_form| %>
+<% form_for @query, :url => {:controller => 'cost_report', :action => 'new' }, :html => {:id => 'query_form', :method => :post, :class => 'new_report' } do |query_form| %>
 <div id="query_form_content">
   <fieldset id="filters" class="collapsible <%= "collapsed" unless @query.new_record? %>">
     <legend onclick="toggleFieldset(this);"><%= l(:label_filter_plural) %></legend>