app/views/profile/join.html.erb
<div class="join-community-confirmation">
<h1><%= _('To join %s, you must:') % profile.name %></h1>
<p>
<%= _("Authorize the visibility of your email address to the community administrator.") %>
</p>
<%= form_tag url_for({:action => :join_modal, :controller => :profile}) do %>
<%= hidden_field_tag('back_to', @back_to) %>
<%= submit_button(:ok, _("Authorize")) %>
<%= modal_close_button _("Cancel") %>
<% end %>
</div>