Overlay Plugin Started & Stock Photos Added

Stock photos were added from istock.com and placed in the
/images/stockphotos folder.  The basic structure of the
jqueryLightbox.js file is being built.  It consists of two functions.
One function for overlay.  One function for the lightbox.

The Overlay is being constructed.  The individual settings can be
defined as options to override the default settings.  Logic isn't
present to detect overriding yet.