ASP - Hit Counter (Read/Write to text file)

Key Points CODE:
<%
'Open file, read value & close
set fso = createobject("scripting.filesystemobject")
set act = fso.opentextfile(server.mappath("HitCounter.txt"))
counter = clng(act.readline)
act.close 

'Add one to counter variable
counter = counter + 1 

'Send counter info to browser
Response.Write "<font color=red size=5><b>You are visitor Number " & counter & "</b></font>"

'Open file, write new counter value & close
set act = fso.CreateTextFile(server.mappath("HitCounter.txt"),true) 
act.WriteLine(counter) 
act.Close 
%>
RESULT:

You are visitor Number 762