Original (4/9/2012)
Unifying header &header_home; slideshow optimizations

header.php - removed header_home.html template
general.css:
408,410,444,416     - category slideshow styles
header.html - added main-slideshow.js and removed old slideshow code
main-slideshow.js - new and optimized slideshow js file;
layout_two_columns.html:
21-23     - mobile detection flag
25-36    - IE-specific polyfill which enables the passage of arbitrary
arguments to the callback functions of javascript timers
38-57 visibility flags implementation