app/helpers/user_helper.rb

   1 module UserHelper
   2   def openid_button(name, url)
   3     link_to_function(
   4       image_tag("#{name}.png", :alt => t("user.login.openid_providers.#{name}.alt")),
   5       nil,
   6       :title => t("user.login.openid_providers.#{name}.title")
   7     ) do |page|
   8       page[:login_form][:user_openid_url][:value] = url
   9       page[:login_form].submit()
  10     end
  11   end
  12 end