Can't get keyboard command to work right

Question

Hello,
I'm trying to get 2 different sets of keys to move a character in a game. "WASD" and the arrow keys. The arrow keys work fine, but I can't get the character to move to the left witht the "A" key after I press the "D" key. Can anyone tell me what to do? I think it might have something to do with the focus? But I don't know anything about that......Here's my code:
public function Player(model:GameModel, stage:Object, playerX:Number, playerY:Number) {
                              // constructor code
                              _gameModel = model;
                              _stage = stage;
                              xPos = playerX;
                              yPos = playerY;
                              _stage.addEventListener(KeyboardEvent.KEY_DOWN, keyDownHandler, false, 0, true);
                              _stage.addEventListener(KeyboardEvent.KEY_UP, keyUpHandler, false, 0, true);
private function keyDownHandler(event:KeyboardEvent):void
                              if (_gameModel.gameMode != "play") return;
                              processKeyDown(event);
                    private function keyUpHandler(event:KeyboardEvent):void
                              if (_gameModel.gameMode != "play") return;
                              processKeyUp(event);
                    internal function processKeyDown(event:KeyboardEvent):void
                      if(event.keyCode == Keyboard.A)||
                               (event.keyCode == Keyboard.LEFT))
                                walk = true;
                        acceleration_X = -aSpeed;
                      if((event.keyCode == Keyboard.D)||
                               (event.keyCode == Keyboard.RIGHT))
                                walk = true;
                        acceleration_X = aSpeed;
                      if((event.keyCode == Keyboard.UP)||
                               (event.keyCode == Keyboard.W))
                       jump=true;
                      if((event.keyCode == Keyboard.DOWN)||
                               (event.keyCode == Keyboard.S))
                                //crouch = true;
                    internal function processKeyUp(event:KeyboardEvent):void
                        if (event.keyCode == Keyboard.LEFT
                        ||event.keyCode == Keyboard.RIGHT||
                     event.keyCode == Keyboard.A
                        ||event.keyCode == Keyboard.D)
                        acceleration_X = 0;
                               walk = false;
                      if((event.keyCode == Keyboard.UP)||
                               (event.keyCode == Keyboard.W))
                         jump = false;
                       if((event.keyCode == Keyboard.DOWN)||
                               (event.keyCode == Keyboard.S))
                         acceleration_Y = 0;
                         //crouch = false;

Answer 1

Here is the top half of the class, not including the variable declarations at the beginning:
public function Player(model:GameModel, stage:Object, playerX:Number, playerY:Number) {
                              // constructor code
                              _gameModel = model;
                              _stage = stage;
                              xPos = playerX;
                              yPos = playerY;
                              _stage.addEventListener(KeyboardEvent.KEY_DOWN, keyDownHandler, false, 0, true);
                              _stage.addEventListener(KeyboardEvent.KEY_UP, keyUpHandler, false, 0, true);
                              _stage.addEventListener(MouseEvent.MOUSE_MOVE, mouseMoveListener, false, 0, true);
                              _stage.addEventListener(MouseEvent.MOUSE_DOWN, shootListener, false, 0, true);
                              _stage.addEventListener(MouseEvent.MOUSE_UP,on_mouse_up, false, 0, true);
                              this._mouseX = mouseX;
                              this._mouseY = mouseY;
                              //playerShot = new PlayerShot(_xPos,_yPos, _mouseX, _mouseY, _gameModel);
                              _spriteGridClass1.initTileSheetData();
                              playerHeadLegsRt = new BlitSprite(_tileSheet, _spriteGridClass1.headLegsRightFrames, 0);
                              _spriteGridClass1.initTileSheetData();
                              playerHeadLegsLft = new BlitSprite(_tileSheet, _spriteGridClass1.headLegsLeftFrames, 0);
                              _spriteGridClass1.initTileSheetData();
                              playerHoldRot = new BlitSprite(_tileSheet, _spriteGridClass1.holdRotFrames, 0);
                              _spriteGridClass1.initTileSheetData();
                              getPistol = new BlitSprite(_tileSheet, _spriteGridClass1.getPistolFrames, 0);
                              _spriteGridClass1.initTileSheetData();
                              getMG = new BlitSprite(_tileSheet, _spriteGridClass1.getMGFrames, 0);
                              _spriteGridClass2.initTileSheetData();
                              getShot = new BlitSprite(_tileSheet2, _spriteGridClass2.getShotFrames, 0);
                              _spriteGridClass2.initTileSheetData();
                              getFT = new BlitSprite(_tileSheet2, _spriteGridClass2.getFtFrames, 0);
                              //***weapons
                              _spriteGridClass2.initTileSheetData();
                              pistolRot = new BlitSprite(_tileSheet2, _spriteGridClass2.pistolRotFrames, 0);
                              _spriteGridClass2.initTileSheetData();
                              FTRot = new BlitSprite(_tileSheet2, _spriteGridClass2.ftRotFrames, 0);
                              _spriteGridClass2.initTileSheetData();
                              shotRot = new BlitSprite(_tileSheet2, _spriteGridClass2.shotRotFrames, 0);
                              _spriteGridClass2.initTileSheetData();
                              MGRot = new BlitSprite(_tileSheet2, _spriteGridClass2.mgRotFrames, 0);
                              //Pistol left and right frames
                              _spriteGridClass1.initTileSheetData();
                              pistolRight = new BlitSprite(_tileSheet, _spriteGridClass1.PistolRightFrames, 0);
                              _spriteGridClass1.initTileSheetData();
                              pistolLeft = new BlitSprite(_tileSheet, _spriteGridClass1.PistolLeftFrames, 0);
                              drawCrosshairs();
                              //draw();
                    private function keyDownHandler(event:KeyboardEvent):void
                              if (_gameModel.gameMode != "play") return;
                              processKeyDown(event);
                    private function keyUpHandler(event:KeyboardEvent):void
                              if (_gameModel.gameMode != "play") return;
                              processKeyUp(event);
                    internal function processKeyDown(event:KeyboardEvent):void
                      if(event.keyCode == Keyboard.A || event.keyCode == Keyboard.LEFT)
                                walk = true;
                        acceleration_X = -aSpeed;
                      if((event.keyCode == Keyboard.D)||
                               (event.keyCode == Keyboard.RIGHT))
                                walk = true;
                        acceleration_X = aSpeed;
                      if((event.keyCode == Keyboard.UP)||
                               (event.keyCode == Keyboard.W))
                       jump=true;
                      if((event.keyCode == Keyboard.DOWN)||
                               (event.keyCode == Keyboard.S))
                                //crouch = true;
                      if(event.keyCode == Keyboard.Q)
                              switchWeapon("minus");
                        dontShowHoldRot = false;
                      if(event.keyCode == Keyboard.E)
                              switchWeapon("plus");
                              dontShowHoldRot = false;
                    internal function processKeyUp(event:KeyboardEvent):void
                        if (event.keyCode == Keyboard.LEFT
                        ||event.keyCode == Keyboard.RIGHT||
                     event.keyCode == Keyboard.A
                        ||event.keyCode == Keyboard.D)
                        acceleration_X = 0;
                               walk = false;
                      if((event.keyCode == Keyboard.UP)||
                               (event.keyCode == Keyboard.W))
                         jump = false;
                       if((event.keyCode == Keyboard.DOWN)||
                               (event.keyCode == Keyboard.S))
                         acceleration_Y = 0;
                         //crouch = false;