set_combinators(array()); $this->set_selectors(array()); } function add_combinator(&$combinator) { $this->_combinators[] =& $combinator; } function add_selector(&$selector) { $this->_selectors[] =& $selector; } function get_combinators() { return $this->_combinators; } function get_selector($index) { return $this->_selectors[$index]; } function get_selectors() { return $this->_selectors; } function set_combinators($value) { $this->_combinators = $value; } function set_selectors($value) { $this->_selectors = $value; } } ?>