public function getHead() {
		if ($this->_head === null) {
			$this->_head = new TablePart();
			$this->_head->setTag(self::TAG_HEAD);
			$this->_head->setHeadPart(true);
		}
		
		return $this->_head;
	}
public function getHead() {
		if ($this->_head === null) {
			$this->_head = new TablePart();
			$this->_head->setTag(self::TAG_HEAD);
			$this->_head->setHeadPart(true);
		}
		
		return $this->_head;
	}
public function getHead ( ) { if ( $ this -> _head === null ) { $ this -> _head = new TablePart ( ) ; $ this -> _head -> setTag ( self :: TAG_HEAD ) ; $ this -> _head -> setHeadPart ( true ) ; } return $ this -> _head ; }
Get the table's head

@return TablePart;
Get the table s head