Asian characters in URL

programming flash
1

Hi.

I have the following AS3 code attached to a click event of a movie clip.

var url:String;
url = "/hkhk/sec/基金資料/市場趨勢分析/視像/index.htm";
var request:URLRequest = new URLRequest(url);
try {
	navigateToURL(request, '_self');
} catch (e:Error) {
	trace("Error occurred!");
}

Clicking the movie clip opens a web page with the following URL:
http://domain/hkhk/sec/???/???/??/index.htm

Is there any way to include Asian characters in URLs without question marks being used?