$.onScreen();

A jQuery plugin that does stuff to elements when they enter or leave the viewport Download How to use Basic usage The basic form $('element').onScreen(); will only toggle the onScreen class on the matched elements. This is optimal for CSS animations, like the demos section above. You can set the tolerance parameter and allow the elements to enter the viewport certain amount of pixels before doing

[stakaya]

画面が移り変わる時にエフェクトを入れてくれるJSライブラリ。