submit_tag (ActionView::Helpers::FormTagHelper)

    # File lib/action_view/helpers/form_tag_helper.rb, line 347
          def submit_tag(value = "Save changes", options = {})
            options.stringify_keys!

            if disable_with = options.delete("disable_with")
              options["onclick"] = [
                "this.setAttribute('originalValue', this.value)",
                "this.disabled=true",
                "this.value='#{disable_with}'",
                "#{options["onclick"]}",
                "result = (this.form.onsubmit ? (this.form.onsubmit() ? this.form.submit() : false) : this.form.submit())",
                "if (result == false) { this.value = this.getAttribute('originalValue'); this.disabled = false }",
                "return result;",
              ].join(";")
            end

            if confirm = options.delete("confirm")
              options["onclick"] ||= ''
              options["onclick"] += "return #{confirm_javascript_function(confirm)};"
            end

            tag :input, { "type" => "submit", "name" => "commit", "value" => value }.update(options.stringify_keys)
          end