Allow prototype functions to receive position parameter as a symbol.

[#887 state:resolved]
Signed-off-by: NJeremy Kemper <jeremy@bitsweat.net>

actionpack/lib/action_view/helpers/prototype_helper.rb

@@ -1060,7 +1060,7 @@ def options_for_ajax(options)
 
         js_options['asynchronous'] = options[:type] != :synchronous
         js_options['method']       = method_option_to_s(options[:method]) if options[:method]
-        js_options['insertion']    = options[:position].to_s.downcase if options[:position]
+        js_options['insertion']    = "'#{options[:position].to_s.downcase}'" if options[:position]
         js_options['evalScripts']  = options[:script].nil? || options[:script]
 
         if options[:form]

actionpack/test/template/prototype_helper_test.rb

@@ -79,6 +79,8 @@ def test_link_to_remote
       link_to_remote("Remote outauthor", :failure => "alert(request.responseText)", :url => { :action => "whatnot", :a => '10', :b => '20' })
     assert_dom_equal %(<a href=\"#\" onclick=\"new Ajax.Request('http://www.example.com/whatnot', {asynchronous:false, evalScripts:true}); return false;\">Remote outauthor</a>),
       link_to_remote("Remote outauthor", :url => { :action => "whatnot" }, :type => :synchronous)
+    assert_dom_equal %(<a href=\"#\" onclick=\"new Ajax.Request('http://www.example.com/whatnot', {asynchronous:true, evalScripts:true, insertion:'bottom'}); return false;\">Remote outauthor</a>),
+      link_to_remote("Remote outauthor", :url => { :action => "whatnot" }, :position => :bottom)
   end
 
   def test_link_to_remote_html_options