Changed the observe field node into a div with display:none

actionpack/lib/action_view/helpers/ajax_helper.rb

@@ -38,12 +38,17 @@ def observe_field(name, options = {}, html_options = {})
         url = options.delete(:url)
         url = url_for(url) if url.is_a?(Hash)
 
-        if frequency = options.delete(:frequency)
+        frequency = options.delete(:frequency)
+        if frequency && frequency > 0
           html_options[:"data-frequency"] = frequency
         end
 
-        html_options.merge!(:"data-observe" => true, :"data-url" => url)
-        tag(:input, html_options)
+        html_options.merge!(:style => "display:none",
+                            :"data-observe-field" => name,
+                            :"data-observe" => true,
+                            :"data-url" => url)
+
+        tag(:div, html_options)
       end
 
       module Rails2Compatibility

actionpack/test/javascript/ajax_test.rb

@@ -123,22 +123,26 @@ def field(options = {})
 
   test "basic" do
     assert_html field,
-      %w(data-observe="true")
-  end
-
-  test "with a :frequency option" do
-    assert_html field(:frequency => 5.minutes),
-      %w(data-observe="true" data-frequency="300")
+      %w(div style="display:none" data-observe="true" data-observe-field="title")
   end
 
   test "using a url string" do
     assert_html field(:url => "/some/other/url"),
-      %w(data-observe="true" data-url="/some/other/url")
+      %w(data-url="/some/other/url")
   end
 
   test "using a url hash" do
     assert_html field(:url => {:controller => :blog, :action => :update}),
-      %w(data-observe="true" data-url="/url/hash")
+      %w(data-url="/url/hash")
+  end
+
+  test "with a :frequency option" do
+    assert_html field(:frequency => 5.minutes),
+      %w(data-frequency="300")
+  end
+
+  test "with a :frequency option of 0" do
+    assert_no_match /data-frequency/, field(:frequency => 0)    
   end
 
 #  def test_observe_field