Flash coding problem

So my image bounces, goes up, left and right - but not down?
anyone help lol

HTML Code:

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        if (Key.isDown(Key.LEFT)){
                if((_x-5) > (_width/2)) {
                      _x-=5;
                }
        }
        if (Key.isDown(Key.RIGHT)){
                if((_x+5) < ScreenWidth-(_width/2)) {
                      _x+=5;
                }
        }
        if (Key.isDown(Key.UP)){
                if((_y-5) > (_height/2)) {
                      _y-=5;
                }
        }
        if (Key.isDown(Key.DOWN)){
                if((_y+5) < ScreenHeight-(_height/2)) {
                      _y+=5;
                }
        }

---

REMOVED

Edited by REDNECK (Forum Super Moderator): Please do not continue to insult other users.

Ooh, I don't know the fix, I'm better with flash than actual AS, you just helped me with something =) +rep :)