Writing HEX values back to file

I have a list of HEX values I want to write back to file. It's sort of working but some values are going missing. It just doesn't make sense to me.

The values:
0024
0532
0AF8
10BE

I expect an 8-byte file like this:
002405320AF810BE

Instead I'm getting an 8-byte file like this:
0024053200001000

As you can see bytes 5, 6 and 8 are missing.

Here is my code:

Dim mydata$(4)

mydata(1) = "0024"
mydata(2) = "0532"
mydata(3) = "0AF8"
mydata(4) = "10BE"

saveData()
End

Function saveData()
	fn = WriteFile("test.out")
	
	For i = 1 To 4
		WriteByte fn, hex2dec(Int(Left$(mydata(i),2)))
		WriteByte fn, hex2dec(Int(Right$(mydata(i),2)))
	Next
	
	CloseFile(fn)
End Function

Function hex2dec(sValue$)
	sValue = "$"+ sValue
	num$ = "0123456789ABCDEFG"
	sValue = Upper(Mid(sValue, 2))

	dec = 0
	For i = 1 To Len(sValue)
		c$ = Mid(sValue, Len(sValue) - (i-1),1)
		n = Instr(num, c) - 1
		dec = dec + n * (16 ^ (i-1))
	Next

	Return dec
End Function

Is there something I'm missing here?

Take out the Int statements to get what you want.

WriteByte fn, hex2dec((Left$(mydata(i),2)))
WriteByte fn, hex2dec((Right$(mydata(i),2)))

D'oh! I can't see the woods for the 1001101000 sometimes. ;)

Thanks.