Using the Joomla API to create a calendar

We'd do it this way:

<?php JHTML::_('behavior.calendar'); ?><form>

<input id="fecha" name="fecha" size="20" type="text" />

<img class="calendar" onclick="return showCalendar('fecha', '%Y-%m-%d');" src="templates/system/images/calendar.png" alt="calendar" />

<form>



And that's all!!!