has_field 'start_date' => ( type => 'DateTime' );
   has_field 'start_date.month' => ( type => 'Integer', range_start => 1,
       range_end => 12 );
   has_field 'start_date.day' => ( type => 'Integer', range_start => 1,
       range_end => 31 );
   has_field 'start_date.year' => ( type => 'Integer', range_start => 2000,
       range_end => 2020 );




##</code><code>##

<div><fieldset class="start_date"><legend>Start date</legend>
<div><label class="label" for="start_date.month">Month: </label><input type="text" name="start_date.month" id="start_date.month" size="8" value="7" /></div>

<div><label class="label" for="start_date.day">Day: </label><input type="text" name="start_date.day" id="start_date.day" size="8" value="14" /></div>

<div><label class="label" for="start_date.year">Year: </label><input type="text" name="start_date.year" id="start_date.year" size="8" value="2006" /></div>
</fieldset></div>