diff --git a/.gitignore b/.gitignore
index 4e693d42..761c6d30 100755
--- a/.gitignore
+++ b/.gitignore
@@ -8,4 +8,5 @@ pkg
 Gemfile.lock
 docs
 .rvmrc
-fixtures/test-app/build
\ No newline at end of file
+fixtures/test-app/build
+.*.swp
\ No newline at end of file
diff --git a/features/helpers_auto_javascript_include_tag.feature b/features/helpers_auto_javascript_include_tag.feature
new file mode 100644
index 00000000..193f074d
--- /dev/null
+++ b/features/helpers_auto_javascript_include_tag.feature
@@ -0,0 +1,27 @@
+Feature: Built-in auto_javascript_include_tag view helper
+  In order to simplify including javascript files
+
+  Scenario: Viewing the root path
+    Given the Server is running
+    When I go to "/auto-js.html"
+    Then I should see "javascripts/auto-js.js"
+
+  Scenario: Viewing a tier-1 path
+    Given the Server is running
+    When I go to "/auto-js/auto-js.html"
+    Then I should see "javascripts/auto-js/auto-js.js"
+
+  Scenario: Viewing the index file of a tier-1 path, without filename
+    Given the Server is running
+    When I go to "/auto-js"
+    Then I should see "javascripts/auto-js/index.js"
+
+  Scenario: Viewing the index file of a tier-1 path, without filename, with a trailing slash
+    Given the Server is running
+    When I go to "/auto-js/"
+    Then I should see "javascripts/auto-js/index.js"
+
+  Scenario: Viewing a tier-2 path
+    Given the Server is running
+    When I go to "/auto-js/sub/auto-js.html"
+    Then I should see "javascripts/auto-js/sub/auto-js.js"
diff --git a/features/helpers_auto_stylesheet_link_tag.feature b/features/helpers_auto_stylesheet_link_tag.feature
index 8139662b..e4ef140b 100644
--- a/features/helpers_auto_stylesheet_link_tag.feature
+++ b/features/helpers_auto_stylesheet_link_tag.feature
@@ -8,10 +8,20 @@ Feature: Built-in auto_stylesheet_link_tag view helper
 
   Scenario: Viewing a tier-1 path
     Given the Server is running
-    When I go to "/sub1/auto-css.html"
-    Then I should see "stylesheets/sub1/auto-css.css"
+    When I go to "/auto-css/auto-css.html"
+    Then I should see "stylesheets/auto-css/auto-css.css"
+
+  Scenario: Viewing the index file of a tier-1 path, without filename
+    Given the Server is running
+    When I go to "/auto-css"
+    Then I should see "stylesheets/auto-css/index.css"
+
+  Scenario: Viewing the index file of a tier-1 path, without filename, with a trailing slash
+    Given the Server is running
+    When I go to "/auto-css/"
+    Then I should see "stylesheets/auto-css/index.css"
 
   Scenario: Viewing a tier-2 path
     Given the Server is running
-    When I go to "/sub1/sub2/auto-css.html"
-    Then I should see "stylesheets/sub1/sub2/auto-css.css"
\ No newline at end of file
+    When I go to "/auto-css/sub/auto-css.html"
+    Then I should see "stylesheets/auto-css/sub/auto-css.css"
diff --git a/fixtures/test-app/config.rb b/fixtures/test-app/config.rb
index b91191ed..0d12818c 100644
--- a/fixtures/test-app/config.rb
+++ b/fixtures/test-app/config.rb
@@ -17,14 +17,27 @@ get "/sub1/sub2/page-class.html" do
   haml :"page-classes.html", :layout => false
 end
 
-get "/auto-css.html" do
-  haml :"auto-css.html", :layout => false
+%w{
+	/auto-css.html
+	/auto-css
+	/auto-css/
+	/auto-css/auto-css.html
+	/auto-css/sub/auto-css.html
+}.each do |path|
+	get path do
+		haml :"auto-css.html", :layout => false
+	end
 end
 
-get "/sub1/auto-css.html" do
-  haml :"auto-css.html", :layout => false
+%w{
+	/auto-js.html
+	/auto-js
+	/auto-js/
+	/auto-js/auto-js.html
+	/auto-js/sub/auto-js.html
+}.each do |path|
+	get path do
+		haml :"auto-js.html", :layout => false
+	end
 end
 
-get "/sub1/sub2/auto-css.html" do
-  haml :"auto-css.html", :layout => false
-end
diff --git a/fixtures/test-app/source/auto-js.html.haml b/fixtures/test-app/source/auto-js.html.haml
new file mode 100755
index 00000000..3bf0eb1e
--- /dev/null
+++ b/fixtures/test-app/source/auto-js.html.haml
@@ -0,0 +1 @@
+= auto_javascript_include_tag
diff --git a/fixtures/test-app/source/javascripts/auto-js.js b/fixtures/test-app/source/javascripts/auto-js.js
new file mode 100644
index 00000000..8b137891
--- /dev/null
+++ b/fixtures/test-app/source/javascripts/auto-js.js
@@ -0,0 +1 @@
+
diff --git a/fixtures/test-app/source/javascripts/auto-js/auto-js.js b/fixtures/test-app/source/javascripts/auto-js/auto-js.js
new file mode 100644
index 00000000..8b137891
--- /dev/null
+++ b/fixtures/test-app/source/javascripts/auto-js/auto-js.js
@@ -0,0 +1 @@
+
diff --git a/fixtures/test-app/source/javascripts/auto-js/index.js b/fixtures/test-app/source/javascripts/auto-js/index.js
new file mode 100644
index 00000000..8b137891
--- /dev/null
+++ b/fixtures/test-app/source/javascripts/auto-js/index.js
@@ -0,0 +1 @@
+
diff --git a/fixtures/test-app/source/javascripts/auto-js/sub/auto-js.js b/fixtures/test-app/source/javascripts/auto-js/sub/auto-js.js
new file mode 100644
index 00000000..8b137891
--- /dev/null
+++ b/fixtures/test-app/source/javascripts/auto-js/sub/auto-js.js
@@ -0,0 +1 @@
+
diff --git a/fixtures/test-app/source/stylesheets/sub1/auto-css.css b/fixtures/test-app/source/stylesheets/auto-css/auto-css.css
similarity index 100%
rename from fixtures/test-app/source/stylesheets/sub1/auto-css.css
rename to fixtures/test-app/source/stylesheets/auto-css/auto-css.css
diff --git a/fixtures/test-app/source/stylesheets/sub1/sub2/auto-css.css b/fixtures/test-app/source/stylesheets/auto-css/index.css
old mode 100755
new mode 100644
similarity index 100%
rename from fixtures/test-app/source/stylesheets/sub1/sub2/auto-css.css
rename to fixtures/test-app/source/stylesheets/auto-css/index.css
diff --git a/fixtures/test-app/source/stylesheets/auto-css/sub/auto-css.css b/fixtures/test-app/source/stylesheets/auto-css/sub/auto-css.css
new file mode 100755
index 00000000..e69de29b
diff --git a/lib/middleman/features/default_helpers.rb b/lib/middleman/features/default_helpers.rb
index e431c8b7..283929c3 100644
--- a/lib/middleman/features/default_helpers.rb
+++ b/lib/middleman/features/default_helpers.rb
@@ -8,22 +8,36 @@ module Middleman::Features::DefaultHelpers
   
   module Helpers
     def auto_stylesheet_link_tag(separator="/")
-      path = request.path_info.dup
-      path << self.class.index_file if path.match(%r{/$})
-      path = path.gsub(%r{^/}, '')
-      path = path.gsub(File.extname(path), '')
-      path = path.gsub("/", separator)
-
-      css_file = File.join(self.class.views, self.class.css_dir, "#{path}.css")
-      sass_file = File.join(self.class.views, self.class.css_dir, "#{path}.css.sass")
-      scss_file = File.join(self.class.views, self.class.css_dir, "#{path}.css.scss")
-      less_file = File.join(self.class.views, self.class.css_dir, "#{path}.css.less")
-    
-      if File.exists?(css_file) || File.exists?(sass_file) || File.exists?(scss_file) || File.exists?(less_file)
-        stylesheet_link_tag "#{path}.css"
+      auto_tag(:css, separator) do |path|
+        stylesheet_link_tag path
       end
     end
     
+    def auto_javascript_include_tag(separator="/")
+      auto_tag(:js, separator) do |path|
+        javascript_include_tag path
+      end
+    end
+
+    def auto_tag(asset_ext, separator="/", asset_dir=nil)
+      if asset_dir.nil?
+        asset_dir = case asset_ext
+          when :js  then self.class.js_dir
+          when :css then self.class.css_dir
+        end
+      end
+      path = request.path_info.dup
+      # If the basename of the request as no extension, assume we are serving a
+      # directory and join index_file to the path.
+      path = File.join(path, self.class.index_file) if File.extname(path).empty?
+      path = path.gsub(%r{^/}, '')
+      path = path.gsub(File.extname(path), ".#{asset_ext}")
+      path = path.gsub("/", separator)
+
+      view = File.join(self.class.views, asset_dir, path)
+      yield path if File.exists?(view) or Dir["#{view}.*"].any?
+    end
+
     def page_classes
       path = request.path_info.dup
       path << settings.index_file if path.match(%r{/$})
@@ -58,4 +72,4 @@ module Middleman::Features::DefaultHelpers
        "#{result_path}#{timestamp}"
      end
   end
-end
\ No newline at end of file
+end
diff --git a/lib/middleman/version.rb b/lib/middleman/version.rb
index d353e575..11a9c7e0 100644
--- a/lib/middleman/version.rb
+++ b/lib/middleman/version.rb
@@ -1,3 +1,3 @@
 module Middleman
-  VERSION = "2.0.0.beta3"
+  VERSION = "2.0.0.beta4"
 end
diff --git a/middleman.gemspec b/middleman.gemspec
index f993b90c..c00ec2a4 100644
--- a/middleman.gemspec
+++ b/middleman.gemspec
@@ -36,6 +36,7 @@ Gem::Specification.new do |s|
   s.add_runtime_dependency("coffee-script", ["~> 2.2.0"])
   s.add_runtime_dependency("httparty", ["~> 0.7.0"])
   s.add_development_dependency("cucumber", ["~> 0.10.0"])
+  s.add_development_dependency("rake", ["0.8.7"])
   s.add_development_dependency("rspec", [">= 0"])
   s.add_development_dependency("rocco", [">= 0"]) unless defined?(JRUBY_VERSION)
 end