jQuery inView Plugin
A plugin to add or remove CSS classes to elements that are entering or leaving from the visible part of the HTML document
inview is a jQuery plugin used to add or remove CSS classes to Html elements when they enter or leave viewport, so that you can apply custom CSS3 animations on them as you scroll down the page.
scrolling scrolling-effectA plugin to add or remove CSS classes to elements that are entering or leaving from the visible part of the HTML document