About My Piece of code!

Well my piece of code is about moving an arrow but when i do the images stays meaning, it draw multiples arrows, which it shouldnt, it should just move the arrow...

Heres my code can you fix it?

AppTitle "Practice"
Graphics 800, 600, 16, 2
SetBuffer Backbuffer()

Global menuarrow = 0
;----------------------
; Load Graphics
;----------------------
	  ; Char Sprites
Global CharA         = LoadImage("images/char1.png")
Global CharB         = LoadImage("images/char2.png")
		; Battle Scene
Global Status_Bar    = LoadImage("images/bset_bottom.png")
Global Fight_Menu    = LoadImage("images/bset_bottomATT.png")
Global Arrow         = LoadImage("images/arrow.png")

;---------------------
; Draw Script
;---------------------	

While Not KeyHit (1)
DrawImage Status_Bar,0,470
DrawImage Fight_Menu,20,440

If menuarrow = 0 Then
Ax = 0
Ay = 10
EndIf
If menuarrow = 1 Then
Ax = 0
Ay = 30
EndIf
If menuarrow = 2 Then
Ax = 0
Ay = 50
EndIf
If menuarrow = 3 Then
Ax = 0
Ay = 70
EndIf
If menuarrow = 4 Then
menuarrow = 0
EndIf



If KeyDown(208) Then ;press down
menuarrow = menuarrow + 1
EndIf

DrawImage Arrow,Ax,Ay
Flip
Wend