public function getTempPath() {
		if (@ $this->tmpPath) {
			return $this->tmpPath;
		} else if (@ $this->tmp) {
			return $this->tmp;
		} else if (function_exists('sys_get_temp_dir')) {
			return sys_get_temp_dir();
		} else if (@ $this->tmbPath) {
			return $this->tmbPath;
		} else {
			return null;
		}
	}