From your code snippets, it looks like your closeLoading function is only being called in your window. Onload function. This means that it won't be called after any Ajax request completes as the window won't be reloaded.
Is a ServerSide variable, so you don't have access to this in Client script.
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.