Users can now be saved with sub_roles

app/assets/javascripts/user_form.js

@@ -1,6 +1,10 @@
 $(document).ready(function(){
-  $('#active_role').change(function(){
+  $('#user_role_id').change(function(){
 		$('#roles .attributes_block').hide();
     $('#'+this.value+'_block').toggle();
   });
+
+  $('.sub_role_select').change(function(){
+    $('#sub_role_' + this.value).toggle();
+  });
 });