orbit-4-1/app/views/admin/users/_form.html.erb

<div id="person">
	<% if @user.avatar? %>
		<%= image_tag(@user.avatar.thumb.url) %>
	<% else %>
		<%= image_tag "person.png" %>
	<% end %>
 	<%= file_field_tag 'file' %>
 	<%= hidden_field_tag :avatar_cache %>
	<%= f.text_field :email, :onfocus => "this.value='';", :onblur => "if(this.value==''){this.value=#{t('admin.email')};}", :value => (@user.email.blank? ? t('admin.email') : @user.email), :class => 'user_mail' %>
	<label>
    <%= f.check_box :admin %><span><%= t('admin.admin') %></span>
	</label>
	<%= f.select :active_role, @user_role_models.sort_by{|role| role.key }.collect {|role| [ role.i18n_variable[I18n.locale], role.key ]}, :selected => (@user.active_role || 'student') %>
</div>

<% @user_info_models.each do |ua| %>
	<div id="basic_block" class="roles_block">
		<h2><%= ua.i18n_variable[I18n.locale] %></h2>
		<hr>
		<%= render :partial => 'user_attribute',
		  :object => (@user.user_infos.detect {|u| u.key == ua.key } || @user.user_infos.build),
		  :locals => {:ua => ua, :type => 'info'} %>
	</div>
<% end -%>

<div id='role_models'>
	<% @user_role_models.each do |ua| %>
		<div id="<%= ua.key %>_block" class="roles_block" <%= raw(' style="display: none;"') unless ((@user.active_role.eql?(ua.key) rescue nil) || (ua.key.eql?('student') && @user.new_record?)) %>>
			<h2><%= ua.i18n_variable[I18n.locale] %></h2>
			<hr>
			<%= render :partial => 'user_attribute',
	      :object => (@user.user_roles.detect {|u| u.key == ua.key } || @user.user_roles.build),
	      :locals => {:ua => ua, :type => 'role'} %>
		</div>	
	<% end -%>
</div>

<% content_for :page_specific_javascript do %>
<script type="text/javascript" charset="utf-8">
	$(document).ready(function(){
    $('#user_active_role').change(function(){
			$('#role_models .roles_block').hide();
      $('#'+this.value+'_block').toggle();
    });
	});
</script>
<% end -%>