app/views/trusted_sites/edit.html.erb
<h2> <%= _("Editing trusted site") %> </h2>
<%= form_tag :action => :update do %>
<%= text_field_tag :site, @site %>
<%= hidden_field_tag :orig_site, @site %>
<%= button_bar do %>
<%= submit_button('save', _('Save changes'), :cancel => {:action => 'index'} ) %>
<% end %>
<% end %>
<script>
jQuery(function() { jQuery('input#site').focus(); } );
</script>