[RESOLVED] Creating filepath out of strings

[MJTheOne]

I know I'm close, but can't find what I'm doing wrong.

If I remove the variables and just type in the path name, the file does play. So there's no other error in this piece of code.
I just can't seem to figure out how to create that filename from variables.

If anyone could help me out I'd be very grateful.

Thx in advance!

EDIT: I should point out more clearly its about the line = public var soundRequest:URLRequest = new URLRequest("sounds/" + Champ + soundType + ".mp3");

I get a 2044 unhandled ioerrorevent error and a 2032 stream error.

package  {
    
    import flash.display.*;
    import flash.events.*;
    import flash.net.*;
    import flash.media.*;
    
    public class button extends MovieClip {
        public var btn1:MovieClip;
        public var btn2:MovieClip;
        
        public var Champ:String = new String();
        public var soundType:String = new String();
        
        public var soundRequest:URLRequest = new URLRequest("sounds/" + Champ + soundType + ".mp3");
        public var mySound:Sound = new Sound();
        public var soundChannel1:SoundChannel = new SoundChannel();
        
        public function button() {
            btn1.addEventListener(MouseEvent.MOUSE_DOWN, btn1Down);
            btn1.addEventListener(MouseEvent.MOUSE_UP, btn1Up);
        }
        function btn1Down(e:MouseEvent){
            trace("click");
            Champ = "Akali.";
            soundType = "joke";
            mySound.load(soundRequest);
            soundChannel1 = mySound.play();
        }
        function btn1Up(e:MouseEvent){
            trace("up");
        }
    }
}