private function parseCgiParameters() {
		
		if (FALSE===strpos($this->url, '?')) {
			return;
		}
			
		$temp = explode('?', $this->url);
		$this->url = $temp[0];
		
		if (!array_key_exists(1, $temp)) {
			return;
		}
			
		// adds to $this->params
		$couples = explode('&', $temp[1]);
		
		foreach ($couples as $c) {
			
			$var = explode('=', $c);
			
			if (array_key_exists(1, $var)) {
				list ($key, $value) = $var;
				$this->setParam($key, $value);
			}
			
		}
		
	}