One of Armageddon's faults was slow initial loading of the first screen. To get to the first screen the browser has to load the Javascript code which was in one .js file.

An improvement for Card 2013 is to split up the Javascript code into separate files, and load the code for a particular scene on the first time it is needed. This isn't so required for Card 2013 as it is a smaller game, but seemed a worthwhile change to make.

The loading is done using AJAX. It is done synchronously which is not usually recommended, but in this specific instance made life simpler.