I am not sure this is what you asked or needed from me.
While I was waiting on your reply I modified my code some. I hope I am heading in the right direction.
I can't seem to post the code. Get error about using "<" which I had before and it posted okay. Anyway I am using scriplet to give each row and cell a dynamic id. Then I do an onclick on the cell to get the id and onclick on the row to get row id. Then I use these values on the table id to get the innerHTML contents of that coordinate.