  We explain how to compute the Jones polynomial of a link from one of its grid
diagrams and we observe a connection between Bigelow's homological definition
of the Jones polynomial and Kauffman's definition of the Jones polynomial.
Consequently, we prove that the Maslov grading on the Seidel-Smith symplectic
link invariant coincides with the difference between the homological grading on
Khovanov homology and the Jones grading on Khovanov homology. We give some
evidence for the truth of the Seidel-Smith conjecture.
