ui/app/static/js/js_libs/tests/rngtest2.rng

<element rngui:version="1.2" name="manipulate" rngui:label="Script" datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes" xmlns="http://relaxng.org/ns/structure/1.0" xmlns:rngui="http://rngui.org">
  <attribute name="id" rngui:label="ID">
    <data type="string" rngui:readonly="true" rngui:default="javascript:generate_id()"/>
  </attribute>
  <text rngui:label='Script that is executed'/>
</element>