I think this may be due to some exception in the code . My suggesstion is to modify you code with error handling.
I ended up rewriting that part, I have no clue why it happened and Firebug was updated since then.
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.