SwatML for this demo:
<?xml version="1.0" standalone="no"?>
<!DOCTYPE swatml SYSTEM "http://swat.silverorange.com/swatml1.dtd">
<swatml>
<widget class="SwatForm" id="my_form">
<widget class="SwatReplicableContainer">
<property name="replication_ids[]" type="integer">0</property>
<property name="replication_ids[]" type="integer">1</property>
<widget class="SwatFieldset">
<property name="title">Title</property>
<widget class="SwatFormField">
<property name="title">Name</property>
<widget class="SwatEntry" id="entry1">
</widget>
</widget>
<widget class="SwatDisclosure">
<property name="title">Checkboxes</property>
<widget class="SwatFormField">
<property name="title">Check 1</property>
<widget class="SwatCheckbox" id="check1">
</widget>
</widget>
<widget class="SwatFormField">
<property name="title">Check 2</property>
<widget class="SwatCheckbox" id="check2">
</widget>
</widget>
</widget>
</widget>
</widget>
<widget class="SwatFieldset">
<property name="title">Seasons</property>
<widget class="SwatNoteBook">
<widget class="SwatReplicableNoteBookChild">
<property name="replication_ids[]" type="integer">0</property>
<property name="replication_ids[]" type="integer">1</property>
<property name="replication_ids[]" type="integer">2</property>
<widget class="SwatNoteBookPage">
<property name="title">Page</property>
<widget class="SwatDateEntry" />
</widget>
</widget>
<widget class="SwatNoteBookPage">
<property name="title">Extra Page</property>
<widget class="SwatEntry" />
</widget>
</widget>
</widget>
</widget>
</swatml>