"Chris Bailey" <[EMAIL PROTECTED]> wrote in message
> Check out the manual section on default parameters...
> But the basics are:
> function top($image = "null") {
> if ($image)

    Shouldn't that be:

        function top($image=null)
        if ($image)

John A. Grant  * I speak only for myself *  (remove 'z' to reply)
Radiation Geophysics, Geological Survey of Canada, Ottawa
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