Its just not your computer anymore - in countless ways. Processing user input should come before anything else, second is displaying what the user wants. To sta

Its just not your computer anymore - in countless ways. Processing user input should come before anything else, second is displaying what the user wants. To state the obvious: You should be able to click around in a menu (that doesn't jump all over the place) and switch between content before it is fully loaded. Almost nothing does this. You have to use things like <a> and <form>, features from back when it was your computer.