@CheckForAfniDset

Usage: @CheckForAfniDset <Name> .....
example: @CheckForAfniDset /Data/stuff/Hello+orig.HEAD
returns 0 if neither .HEAD nor .BRIK(.gz)(.bz2)(.Z) exist
          OR in the case of an error
             An error also sets the status flag
        1 if only .HEAD exists
        2 if both .HEAD and .BRIK(.gz)(.bz2)(.Z) exist
        3 if .nii dataset
See also 3dinfo -exists
Ziad Saad (saadz@mail.nih.gov)
  SSCC/NIMH/ National Institutes of Health, Bethesda Maryland