$filters = array(
            'chapeu'   => array('StripTags', 'HtmlEntities'),
            'corpo'    => 'HtmlEntities',
        	'titulo'   => array( 'HtmlEntities'),
        	'alias'    => array(
        		'StripTags',
        		'StringToLower',
        		new Zag_Filter_CharConvert(null,null)
            ),
        	'lide'     => 'HtmlEntities',
        	'keywords' => 'StripTags'
        );