I suppose that you have problem with id duplicates. HTML don't allow to use id attributes on the same HTML pages with the same values. The values of all id attributes must be unique .
I recommend you to verify that you have the problem by usage of Developer Tools of Chrome/IE or using Firebug. You need just examine the id attributes which you have now on tr elements of grid and subgrids.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.