asp aspjpeg將多個圖片合成gif動畫

<% 
'    並給此gif動畫加浮水印
'參數：
' str:圖片相對位址，多個圖片中間使用英文逗號隔開

Function creategif(str)
'多圖動畫輸出 
Dim Jpeg,Gif 
Set Jpeg = Server.CreateObject("Persits.Jpeg") 
    Set Gif = Jpeg.Gif 
 FileNames=Split(str,",")       
        Gif.Width = 100 
        Gif.Height = 100 
        For i = 0 To UBound(FileNames) 
            Jpeg.Open Server.MapPath(FileNames(i)) 
            Jpeg.PreserveAspectRatio = True 
            if Jpeg.OriginalWidth > 100 or Jpeg.OriginalHeight > 100 Then 
                if Jpeg.OriginalWidth > Jpeg.OriginalHeight Then 
                    Jpeg.Width = 100 
                Else 
                    Jpeg.Height = 100 
                End If 
            End If 
            Gif.AddImage Jpeg, (100 - Jpeg.Width) / 2, (100 - Jpeg.Height) / 2 
            Gif.DisposalMethod =2
   
   Gif.PenColor = 235
   Gif.FontFamily = "Tahoma" 
   Gif.FontSize = 13
   Gif.PrintText 20,10, .net教程">www.111cn.net 
  Next 
        Gif.SendBinary  '在瀏覽器中輸出此圖片
  'Gif.Save Server.MapPath("1.gif") '儲存為1.gif圖片
    Set Gif=Nothing 
Set Jpeg=Nothing 
End Function

Call creategif("images/1.jpg,images/2.jpg,images/3.jpg,images/4.jpg")
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