Safari requires an explicit submit

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@6136 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

actionpack/lib/action_view/helpers/form_tag_helper.rb

@@ -145,7 +145,7 @@ def submit_tag(value = "Save changes", options = {})
             "this.disabled=true",
             "this.value='#{disable_with}'",
             "#{options["onclick"]}",
-            "return (this.form.onsubmit ? this.form.onsubmit() : true)",
+            "return (this.form.onsubmit ? this.form.onsubmit() : this.form.submit())",
           ].join(";")
         end