Excluding file types in classic asp

Hi all,

Messing around heavily with an upload feature for my customers. I got the renaming of the file to work thanks to some awesome help in this forum. However what was screwing that code up to begin with was my attempt to restrict filetypes to jpg, jpeg, gif & png files. So - Any great ideas on how to do that without messing up my beatiful working code? I have the name of file serverside and I have the extension, but can't figure out how to do anything with that information. I tried the feature found here, but that was what was messing things up in the first place.

Here's the code that I have so far:

<%
Set oFileUp = Server.CreateObject("SoftArtisans.FileUp")
oFileUp.Path = "server path..."
oFileUp.CreateNewFile = True
oFileUp.OverWriteFiles = True
'oFileUp.Maxbytes = 300

If Not oFileUp.Form("file1").IsEmpty Then
oFileUp.Form("file1").Save

If Err.Number <> 0 Then
Response.Write "<B>Error description:</B> " & Err.Description
Else
Response.Write ""
End If
Else
Response.Write "Error! There is no file chosen for upload!"
End If

strServerName = oFileUp.Form("file1").ServerName

dim fs,p
set fs=Server.CreateObject("Scripting.FileSystemObject")
e=(fs.GetExtensionName("" & strServerName & ""))
p=fs.getfilename("" & strServerName & "")
response.write(p)
response.write(e)
set fs=nothing


Set oFileUp = Nothing
%>

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