protected function _renderUrl($control) {
		$params = $this->getUrlParams();
		$params[$this->_pageParam] = $control;
		
		if ($this->_urlAssembler === null) {
			return $this->_baseUrl . '?' . http_build_query($params);
		}
		
		return $this->_urlAssembler->__invoke($params);
	}