diff --git a/lib/webrat/core/mime.rb b/lib/webrat/core/mime.rb
new file mode 100644
index 0000000..7851e4d
--- /dev/null
+++ b/lib/webrat/core/mime.rb
@@ -0,0 +1,29 @@
+module Webrat
+  module MIME
+    
+    def self.mime_type(string_or_symbol)
+      if string_or_symbol.is_a?(String)
+        string_or_symbol
+      else
+        case string_or_symbol
+        when :text              then "text/plain"
+        when :html              then "text/html"
+        when :js                then "text/javascript"
+        when :css               then "text/css"
+        when :ics               then "text/calendar"
+        when :csv               then "text/csv"
+        when :xml               then "application/xml"
+        when :rss               then "application/rss+xml"
+        when :atom              then "application/atom+xml"
+        when :yaml              then "application/x-yaml"
+        when :multipart_form    then "multipart/form-data"
+        when :url_encoded_form  then "application/x-www-form-urlencoded"
+        when :json              then "application/json"
+        else
+          raise ArgumentError.new("Invalid Mime type: #{string_or_symbol.inspect}")
+        end
+      end
+    end
+    
+  end
+end
\ No newline at end of file
diff --git a/lib/webrat/core/session.rb b/lib/webrat/core/session.rb
index 56fdb4d..b33c30b 100644
--- a/lib/webrat/core/session.rb
+++ b/lib/webrat/core/session.rb
@@ -1,6 +1,8 @@
 require "forwardable"
 require "ostruct"
 
+require "webrat/core/mime"
+
 module Webrat
   class Session
     extend Forwardable
@@ -58,28 +60,8 @@ module Webrat
       @custom_headers[key] = value
     end
 
-    def http_accept(mime_type_as_string_or_symbol)
-      if String === mime_type_as_string_or_symbol
-        header('Accept', mime_type_as_string_or_symbol)
-      elsif Symbol === mime_type_as_string_or_symbol
-        mime_type_as_string = case mime_type_as_string_or_symbol
-                              when :text then "text/plain"
-                              when :html then "text/html"
-                              when :js then "text/javascript"
-                              when :css then "text/css"
-                              when :ics then "text/calendar"
-                              when :csv then "text/csv"
-                              when :xml then "application/xml"
-                              when :rss then "application/rss+xml"
-                              when :atom then "application/atom+xml"
-                              when :yaml then "application/x-yaml"
-                              when :multipart_form then "multipart/form-data"
-                              when :url_encoded_form then "application/x-www-form-urlencoded"
-                              when :json then "application/json"
-                              end
-        raise ArgumentError.new("Invalid Mime type: #{mime_type_as_string_or_symbol.inspect}") unless mime_type_as_string
-        header('Accept', mime_type_as_string)
-      end
+    def http_accept(mime_type)
+      header('Accept', Webrat::MIME.mime_type(mime_type))
     end
     
     def basic_auth(user, pass)
diff --git a/spec/webrat/core/session_spec.rb b/spec/webrat/core/session_spec.rb
index de11c8b..a0790e8 100644
--- a/spec/webrat/core/session_spec.rb
+++ b/spec/webrat/core/session_spec.rb
@@ -19,7 +19,7 @@ describe Webrat::Session do
   
   it "should open the page in the browser" do
     session = Webrat::Session.new
-    session.should_receive(:`).with("open path") #`)
+    session.should_receive(:`).with("open path")
     session.open_in_browser("path")
   end