allow labels to have custom html_options

lib/tabular_form_builder.rb

@@ -35,12 +35,12 @@ class TabularFormBuilder < ActionView::Helpers::FormBuilder
   end
 
   # Returns a label tag for the given field
-  def label_for_field(field, options = {})
+  def label_for_field(field, options = {}, html_options = {})
       return '' if options.delete(:no_label)
       text = options[:label].is_a?(Symbol) ? l(options[:label]) : options[:label]
       text ||= l(("field_" + field.to_s.gsub(/\_id$/, "")).to_sym)
       text += @template.content_tag("span", " *", :class => "required") if options.delete(:required)
       @template.label(@object_name, field.to_s, text,
-                                     :class => (@object && @object.errors[field] ? "error" : nil))
+                                     { :class => @object && @object.errors[field] ? "error" : nil }.merge(html_options))
   end
 end