Added support for javascript helpers

Enabled by default, disable with :javascript_helpers=>false

app/views/application/_analytical_javascript.html.erb

@@ -0,0 +1,11 @@
+<script type="text/javascript">
+var Analytical = {
+  track: function(page) {
+<%= raw analytical.now.track('__PAGE__').gsub(/"__PAGE__"/,'page') %>
+  },
+  event: function(name, data) {
+    if (typeof data === 'undefined') { data = {}; }
+<%= raw analytical.now.event('__EVENT__', {}).gsub(/"__EVENT__"/,'name').gsub(/"?\{\}"?/,'data') %>
+  }
+};
+</script>

lib/analytical.rb

@@ -45,6 +45,7 @@ def analytical
         if analytical_is_robot?(request.user_agent)
           options[:modules] = []
         end
+        options[:javascript_helpers] ||= true
         Analytical::Api.new options
       end
     end

lib/analytical/api.rb

@@ -67,7 +67,21 @@ def head_prepend_javascript
     end
 
     def head_append_javascript
-      [init_javascript(:head_append), tracking_javascript(:head_append)].delete_if{|s| s.blank?}.join("\n")
+      js = [
+        init_javascript(:head_append),
+        tracking_javascript(:head_append),
+      ]
+
+      if options[:javascript_helpers]
+        if Rails::VERSION::MAJOR >= 3 && Rails::VERSION::MINOR >= 1  # Rails 3.1 lets us override views in engines
+          js << options[:controller].send(:render_to_string, :partial=>'analytical_javascript') if options[:controller]
+        else # All other rails
+          _partial_path = Pathname.new(__FILE__).dirname.join('..', '..', 'app/views/application', 'analytical_javascript.html.erb').to_s
+          js << options[:controller].send(:render_to_string, :partial=>_partial_path) if options[:controller]
+        end
+      end
+
+      js.delete_if{|s| s.blank?}.join("\n")
     end
 
     alias_method :head_javascript, :head_append_javascript