public function __get($key = '') {
		$ret = NULL;
		
		$parts = array();
		if(strpos($key, '.') !== FALSE) {
			$parts = explode('.', $key);
			$key = array_shift($parts);
		}
		
		$level = $this->__isset($key);
		if($level !== FALSE) {
			$ret = $this->vars[$level][$key];
			
			// deal with sub objects :)
			$i = -1;
			while(isset($parts[++$i])) {
				
				$key = $parts[$i];
				if((is_array($ret) || $ret instanceof ArrayAccess) && isset($ret[$key])) {
					$ret = $ret[$key];
				} else if(is_object($ret)) {
					if(isset($ret->$key)) {
						$ret = $ret->$key;
					} else {
						$key = 'get'. camelize($key);
						if(method_exists($ret, $key)) {
							$ret = $ret->$key();
						}
					}
				} else {
					break;
				}
			}
		}
		
		return $ret;
	}