Move Multiple direction in Soccer Game...?!

Question

Hello,
I have create simple keyboard event to move the ball/player to right, left, top & bottom. lets say the user click up arrow to move up after that he press the right arrow while still pressed the up arrow to move to top right and if he release the top arrow while still pressed right arrow he will move to the right only. How can i do that ?!
function SoccerMove(e:KeyboardEvent):void {
    if(e.keyCode == 37) {
            SoccerBall_mc.x -= 5;
    }else if(e.keyCode == 38) {
            SoccerBall_mc.y -= 5;
    }else if(e.keyCode == 39) {
            SoccerBall_mc.x += 5;
    }else if(e.keyCode == 40) {
            SoccerBall_mc.y += 5;
stage.addEventListener(KeyboardEvent.KEY_DOWN, SoccerMove);
Regards,

Answer 1

thanks kglad,
I do it using hitTestObject. Can i make better code then what i have now as you can see it's large for just move and a lot of conditions
import flash.events.KeyboardEvent;
import flash.events.Event;
var TopArrow:Boolean;
var BottomArrow:Boolean;
var RightArrow:Boolean;
var LeftArrow:Boolean;
var PlayerSpeed:int = 3;
//-------------------- Move The Player --------------------
function SoccerTrue(e:KeyboardEvent):void {
          if(e.keyCode == Keyboard.LEFT) {
                    LeftArrow = true;
          }else if(e.keyCode == Keyboard.UP) {
                    TopArrow = true;
          }else if(e.keyCode == Keyboard.RIGHT) {
                    RightArrow = true;
          }else if(e.keyCode == Keyboard.DOWN) {
                    BottomArrow = true;
stage.addEventListener(KeyboardEvent.KEY_DOWN, SoccerTrue);
function SoccerFalse(e:KeyboardEvent):void {
          if(e.keyCode == Keyboard.LEFT) {
                    LeftArrow = false;
          }else if(e.keyCode == Keyboard.UP) {
                    TopArrow = false;
          }else if(e.keyCode == Keyboard.RIGHT) {
                    RightArrow = false;
          }else if(e.keyCode == Keyboard.DOWN) {
                    BottomArrow = false;
stage.addEventListener(KeyboardEvent.KEY_UP, SoccerFalse);
function SoccerMove(e:Event):void {
          if(LeftArrow && !SoccerBall_mc.hitTestObject(LeftLine)) {
                    SoccerBall_mc.x -= PlayerSpeed;
          if(TopArrow && !SoccerBall_mc.hitTestObject(TopLine)) {
                    SoccerBall_mc.y -= PlayerSpeed;
          if(RightArrow && !SoccerBall_mc.hitTestObject(RightLine)) {
                    SoccerBall_mc.x += PlayerSpeed;
          if(BottomArrow && !SoccerBall_mc.hitTestObject(BottomLine)) {
                    SoccerBall_mc.y += PlayerSpeed;
this.addEventListener(Event.ENTER_FRAME, SoccerMove);