button - ActionScript Errors -

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im making buttons when pressed call function present either wrong answer text or right answer text, seems correct me have pesky error. 1084: syntax error: expecting rightparen before button. cant figure out problem is.

here code. appreciate , help. thank you.

    stop();  mywelcome.text = "hello, " + myname;  btn81.addeventlistener(mouseevent.mouse_up,81button){     function 81button (evt:event):void{     wronganswer(); } }    btn85.addeventlistener(mouseevent.mouse_up,85button){     function 81button (evt:event):void{     wronganswer(); } }   btn91.addeventlistener(mouseevent.mouse_up,91button){     function 91button (evt:event):void{     rightanswer(); } }    btn95.addeventlistener(mouseevent.mouse_up,95button){     function 81button (evt:event):void{     wronganswer(); } }     function wronganswer (evt:event):void{     feedback.text = "wrong";     nosound.play(); } function yessound (evt:event):void{     feedback.text = "correct";     yessound.play(); }

you can use anonymous functions.

for example code:

btn81.addeventlistener(mouseevent.mouse_up,81button){     function 81button (evt:event):void{     wronganswer(); } }

can converted to:

btn81.addeventlistener(mouseevent.mouse_up, function(event:event):void {     wronganswer(); });

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