scroll

http://codepen.io/simpleminded/pen/noaJj

https://css-tricks.com/scroll-fix-content/

http://stanhub.com/scroll-to-top-then-fixed-navigation-effect-with-jquery-and-css-free-download/

http://jquery-plugins.net/tag/sticky-scroll

http://www.jqueryscript.net/lightbox/Simple-jQuery-Plugin-For-Opening-A-Popup-Window-On-Page-load.html