public function setClosed($flag = true) {
		$this->_closed    = (bool) $flag;
		$this->_tagCached = null;
		
		return $this;
	}
public function setClosed($flag = true) {
		$this->_closed    = (bool) $flag;
		$this->_tagCached = null;
		
		return $this;
	}
public function setClosed ( $ flag = true ) { $ this -> _closed = ( bool ) $ flag ; $ this -> _tagCached = null ; return $ this ; }
Set the tag is closed or not

@param  bool $flag
@return Tag
Set the tag is closed or not