1084 error

Hi, The full code is pasted below.

import flash.events.MouseEvent;

//Set up for global variables.
var beginmessage:String;
var randomNumber:uint;
var my_guess:uint;
var numOfGuesses:uint;
var numOfGuessesMessage:String;

function init() :void {
//Disables the reset button, and enables the guess buton.
reset_btn.enabled =false;
guess_btn.enabled =true;

//Displays a starting message in message_txt.
beginmessage= "Guess a number 1 - 100";
message_txt.text=beginmessage;

//Restrict characters in input_txt field, Only numbers "0-9" can be entered.
input_txt.restrict="0-9";

//Clear text in input field.
input_txt.text="";

//Stores a random number between 1 - 100 to the varible "randomNumber"
randomNumber = Math.floor(Math.random() * 100 + 1);

//Add event listener to guess button
guess_btn.addEventListener(MouseEvent.CLICK, yourGuess);

//Add event listener to reset button
reset_btn.addEventListener(MouseEvent.CLICK, winGame);
}

function yourGuess(event:MouseEvent):void{
//Stores guess data from input field to variable my_guess.
my_guess=uint(input_txt.text);

//Check if guessed number is greater then random number.
if(my_guess > randomNumber){
  message_txt.text = "Your guess, " + my_guess + " is too high.";
}
//Check if lower number is lower then random number.
else if (my_guess < randomNumber){
  message_txt.text = "Your guess, " + my_guess + " is too low.";
}

//Display message when guess is correct
else{
  message_txt.text = "Well done, the number is " + randomNumber + ".";
winGame(event:MouseEvent);
}
}
      //Code based on guesses remaining
  //Message showing guesses remaining
  numOfGuesses = 6;
  numOfGuessesMessage = " Guesses remaining";
  guess_txt.text = numOfGuesses + numOfGuessesMessage;
 
     guessMessage();
 
  function guessMessage():void {
   //Only decrement numofGuess if the input field has characters.
   if(input_txt.length > 1 && numOfGuesses != 0){
    numOfGuesses--;
    guess_txt.text = numOfGuesses + numOfGuessesMessage;
   }
  //When guesses have ran out, A message will appear saying you can reset.
  if(numOfGuesses == 0){
   message_txt.text = "The number I was thinking was " + randomNumber + ".";
   guess_txt.text = "Press play again to try again";
  winGame(event:MouseEvent);
  }
  }

function winGame(event:MouseEvent):void{
//disables guest button and enables reset button
guess_btn.enabled=false;
reset_btn.enabled=true;
}

function guessAgain(event:MouseEvent):void{
//runs init() method
init();
}

//runs init() method
init();