-------------------------------------------
entry variable: $newjc -- Right/Left
entry variable: $newimc -- Posterior/Anterior
entry variable: $newic -- Inferior/Superior
-------------------------------------------

The unlabeled entry below each Talairach
coordinate (immediately to the right of the
sliders) are the pixel indices into the 256 mm^3
structural COR volume (COR dir or COR mgz file).

These are updated upon a left-click on the
displayed image.

Entering a number plus <Return> will move the
cursor to that coordinate and change to this
display plane.

These coords are similar to the "Volume index" in
MGH tkmedit, but are in a different order and
have one axis flipped.  The equivalent MGH
numbers are written into the tkmedit interface
window title bar on each click (or available in a
pop-up by left-clicking the top "yTal P/A"
label).
