Actionscript 3 :: Make Some "social Share" Buttons At Site?

I'm trying to make some "social share" buttons at my site, but the urls I generate just don't get decoded by this services.One example, for twitter:

private function twitter(e:Event):void {
var message:String = "Message with special chars âõáà";
var url:String = "http://www.twitter.com/home?status=";
var link:URLRequest = new URLRequest( url + escape(message) );
}

But when twitter opens up, the message is:

Message with special chars%E2%F5%E1%E0

Something similar is happening with Facebook and Orkut (but these two hide the special chars).