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resolve relative link

This is a simple function to resolve a relative link. ie turns www.a/b/c/../e.htm into www.a/b/e.htm
Made this for a web crawler I am working on.
Hope you find this usefull.

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Public Function cleanurl(url As String)
Dim x As Long
Dim y As Long
check:
x = InStr(1, url, "../", vbBinaryCompare)
If x = 1 Then
url = Mid(url, 4)
ElseIf x > 1 Then
 y = InStrRev(url, "/", x - 2, vbBinaryCompare)
 If y > 0 Then
 url = Mid(url, 1, y) & Mid(url, x + 3)
 Else
  url = Mid(url, 4)
 Debug.Print url
 End If
GoTo check:
End If
cleanurl = url
End Function