Walk a character using mouse event AS3

Hello everyone! I'm creating an Android game for our thesis. I want to walk my character after I click the stage (in one direction only), and the character goes to the key. I've searched about this thing on an internet then I found a code about this but it fails. I really don't know what code that I can put on an Actions (F9), I've tried and tried but until now, it fails.

My character has 9 keyframes on it, one movement per keyframe:

Here's the picture of my actual game interface (with edited texts):

Note: The long arrow shows that I want my character to go thru the key after clicking a stage.

And I don't think that my frames are right because I did two keyframes per game because after I got a key, the questionnaire will appear and after the "correct!" window appears, the door will open and the character will disappear after it enters to the door.

And here's my code:

stop();

import flash.text.*;

import flash.display.MovieClip;

import flash.net.URLLoader;

import flash.net.URLRequest;

import flash.events.MouseEvent;

import flash.events.Event;

import flash.events.*;

import flash.display.DisplayObject;

import flash.geom.Point;

import flash.display.Stage;

import flash.display.Sprite;

var buhay = 3;

var iskoru = 0;

var hinto = 3;

var iswalking = false;

var goX = playergril.x; // goX - the point on the X axis to which playergril must move

var goY = playergril.y; // same as goX but on the Y axis

var movespeed = 5; // movespeed of our hero

var dir = "step1"; // current direction of movement

var keyCollected: Boolean = false;

var doorOpen: Boolean = false;

var limiterX = key.x;

var limiterY = key.y;

var min_x = 10;

var min_y = 5;

var max_x = 20;

var max_y = 10;

stage.addEventListener(Event.ENTER_FRAME, loop);

function loop(Event) {

  // animation handling

  // direction handling

  playergril.gotoAndStop(dir);

  // movement handling

  if ((goX - movespeed) > playergril.x) {

  playergril.x += movespeed;

  if(playergril.x > max_x){

  playergril.x = max_x;

  dir = "step1";

  iswalking = true;

  }

  } else if ((goX + movespeed) < playergril.x) {

  playergril.x -= movespeed;

  if(playergril.x > min_x){

  playergril.x = min_x;

  dir = "step3";

  iswalking = true;

  }

  } else if ((goY - movespeed) > playergril.y) {

  playergril.y += movespeed;

  if(playergril.y > max_y){

  playergril.y = max_y;

  dir = "step6";

  iswalking = true;

  }

  } else if ((goY + movespeed) < playergril.y) {

  playergril.y -= movespeed;

  if(playergril.y > min_y){

  playergril.y = min_y;

  dir = "step9";

  iswalking = true;

  }

  } else {

  iswalking = false;

  }

}

stage.addEventListener(MouseEvent.CLICK, setposition);

// set the position to which playergril must move on click

function setposition(MouseEvent) {

  goX = mouseX;

  goY = mouseY;

}

if (keyCollected == false) {

  if (playergril.hitTestObject(key)) {

  key.visible = false;

  keyCollected = true;

  trace("key collected");

  }

}

btnForward.addEventListener(MouseEvent.CLICK, forward);

function forward(event: MouseEvent): void {

  gotoAndStop(76);

  playergril.visible = false;

}

Is there something wrong on that code? Any suggestions or code that may solve on my problem? Any help will be appreciated. Thanks!