function path($name, $null_on_failure = false) {
		if ( ! isset($this->registeredpaths[$name])) {
			if ($null_on_failure) {
				return null;
			}
			else { // panic
				throw new Panic("There is no path registered for $name.");
			}
		}
		else { //
			return $this->registeredpaths[$name];
		}
	}