Explain how to use the :href option for link_to_remote to degrade gra…

…cefully in the absence of JavaScript. Closes rails#8911 [vlad]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@8100 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

actionpack/CHANGELOG

@@ -1,5 +1,7 @@
 *SVN*
 
+* Explain how to use the :href option for link_to_remote to degrade gracefully in the absence of JavaScript. Closes #8911 [vlad]
+
 * Disambiguate :size option for text area tag. Closes #8955 [redbeard]
 
 * Fix broken tag in assert_tag documentation. Closes #9037 [mfazekas]

actionpack/lib/action_view/helpers/prototype_helper.rb

@@ -136,6 +136,17 @@ module PrototypeHelper
       #                          default this is the current form, but
       #                          it could just as well be the ID of a
       #                          table row or any other DOM element.
+      #
+      # You can generate a link that uses AJAX in the general case, while 
+      # degrading gracefully to plain link behavior in the absence of
+      # JavaScript by setting <tt>html_options[:href]</tt> to an alternate URL.
+      # Note the extra curly braces around the <tt>options</tt> hash separate
+      # it as the second parameter from <tt>html_options</tt>, the third.
+      #
+      # Example:
+      #   link_to_remote "Delete this post",
+      #     { :update => "posts", :url => { :action => "destroy", :id => post.id } },
+      #     :href => url_for(:action => "destroy", :id => post.id)
       def link_to_remote(name, options = {}, html_options = nil)  
         link_to_function(name, remote_function(options), html_options || options.delete(:html))
       end