Как добавить еще одно поле данных в материал - Joomla 1.5: Общие вопросы

<?php if ($this->params->get('cena')) : ?>
	<td class="sectiontableheader<?php echo $this->escape($this->params->get('pageclass_sfx')); ?>"  width="20%">
		<?php echo JHTML::_('grid.sort',  'cena', 'cena', $this->lists['order_Dir'], $this->lists['order'] ); ?>
	</td>
	<?php endif; ?>

<?php if ($this->params->get('cena')!== '') : ?>
    <td >
    <?php echo  JText::_($this->params->get('cena')); ?>
    </td >
<?php endif; ?>

<param name="show_cena" type="list" default="1" label="cena" description="cena">
				<option value="0">Hide</option>
				<option value="1">Show</option>
			</param>

 <?php if ($this->params->get('show_cena')) : ?>
	<td class="sectiontableheader<?php echo $this->escape($this->params->get('pageclass_sfx')); ?>"  width="20%">
		<?php echo JHTML::_('grid.sort',  'cena', 'a.cena', $this->lists['order_Dir'], $this->lists['order'] ); ?>
	</td>
    <?php endif; ?>

    <?php if ($this->params->get('cena')) : ?>
    <td>
    <?php echo  JText::_($this->params->get('cena')); ?>
    </td>
<?php endif; ?>

echo $this->params->get('cena');