Testing pull requests

1. I have moved all javascript files at the bottom of the page.
2. I've also added all global window functions at file scify.index.js

Gradually i will move all the window functions (ex.  function GetCategories(){ etc..}
inside the "class"  scify.index that is built using the revealing prototype pattern ( http://weblogs.asp.net/dwahlin/archive/2011/08/03/techniques-strategies-and-patterns-for-structuring-javascript-code-revealing-prototype-pattern.aspx )
This will keep the window object clean (preventing javascript's namespace pollution)


3. I have moved the page's header to the index.html instead of getCategories.php.
Now getCategories.php is only responsible for fetching the categories that are displayed at the menu