php hit counter milestone recorder

My normal hit counter is as follows

<%
Dim FolderObject
Dim MyFolder
set FolderObject=server.CreateObject("Scripting.FileSystemObject")
If FolderObject.FolderExists("C:\counter\Text")=false then
      FolderObject.CreateFolder("C:\counter\Text")

end if
Dim Counter
set TextFile=FolderObject.OpenTextFile("C:\counter\Text\xxx.txt")
      counter=INT(textfile.readline)+1
set TextFile=FolderObject.CreateTextFile("C:\counter\Text\xxx.txt")

      TextFile.writeline(counter)
      Response.Write(counter)
TextFile.close
%>

I would like to add a code that would activate a banner or drop down that will become visible when the total in the text file reaches a specific figure i.e.
"This site has now had 100,000 visitors"  Whether it be a drop down, a banner or a blockquote does nor really matter.

Can this be done?