Is there a more elegant way of adding comma's?

[PartyPooper]

I've written some code that reads a text file and determines the total number of lines in the file ($TotalLines). When displaying the result, I need to add commas to make it more aesthetically pleasing and easier to read (eg: 1,000 instead of 1000 and 100,000 instead of 100000). Currently, I'm using the code below (which is limited to 99,999,999 lines) to add the comma's but does anyone know of a cleaner way to add them?

If StringLen($TotalLines) < 4 Then
  $Samples = $Samples; 0 - 999
ElseIf StringLen($TotalLines) = 4 Then
  $Samples = StringTrimRight($TotalLines, 3) & "," & StringTrimLeft($TotalLines, 1); 1,000 - 9,999
ElseIf StringLen($TotalLines) = 5 Then
  $Samples = StringTrimRight($TotalLines, 3) & "," & StringTrimLeft($TotalLines, 2); 10,000 - 99,999
ElseIf StringLen($TotalLines) = 6 Then
  $Samples = StringTrimRight($TotalLines, 3) & "," & StringTrimLeft($TotalLines, 3); 100,000 - 999,000
ElseIf StringLen($TotalLines) = 7 Then
  $Samples = StringTrimRight($TotalLines, 6) & "," & StringMid($TotalLines, 2, 3) & "," & StringTrimLeft($TotalLines, 4); 1,000,000 - 9,999,999
ElseIf StringLen($TotalLines) = 8 Then
  $Samples = StringTrimRight($TotalLines, 6) & "," & StringMid($TotalLines, 3, 3) & "," & StringTrimLeft($TotalLines, 5); 10,000,000 - 99,999,999
EndIf
MsgBox(0,"",$Samples " Lines of text in file")

I've looked at Burrup's _AddComma function, but I'd rather use a native AutoIt 3 Function or UDF if one is available (by native, I mean one that is included in the distro).

Thanks.

[Valuater]

well heres a small effort for ya

Dim $t = 0, $Final

$Totallines = "1234567890"

$result = StringSplit($Totallines, "")

For $x = $result[0] to 1 step -1
    $t = $t + 1
    If $t = 4 And $x < $result[0] Then
        $Final = $result[$x] & "," & $Final
        $t = 1
        ContinueLoop
    Else
        $Final = $result[$x] & $Final
    EndIf
Next

MsgBox(0,"Final Result", $Final)

8)

Edited November 29, 2005 by Valuater

[PartyPooper]

Thanks Valuater.