/**
  * Constructor
  * @param ZObject $a_parent
  * @param string $a_name
  */
 public function __construct(ZObject &$a_parent = null, $a_name = null)
 {
     parent::__construct($a_parent, $a_name);
     $this->document = new ZTextDocument();
     $this->document->setParent($this);
     $this->setBase($this->document);
 }
 /**
  * Constructor
  * @param ZObject $a_parent
  * @param string $a_name
  */
 public function __construct(ZObject &$a_parent = null, $a_name = null)
 {
     parent::__construct($a_parent, $a_name);
     $this->document = new ZTextDocument(ZDocument::DOCTYPE_CSS, 'text/css');
 }
 /**
  * Constructor
  * @param ZObject $a_parent
  * @param string $a_name
  */
 public function __construct(ZObject &$a_parent = null, $a_name = null)
 {
     parent::__construct($a_parent, $a_name);
     $this->document = new ZSiteMapUrlsetDocument();
 }