JavaScript Page Animation Object is a standalone JavaScript object that can be used to animate elements of HTML Web pages, without requiring additional libraries. It can manage one or more animations that may run in parallel. Each animation is composed of a sequence of steps that apply individual effects to Web page elements. Currently, it supports the following effects: showing or hiding page elements, fading in, fading out, and replacing, appending, or prepending HTML to a page element, sliding in and out a page element, scrolling the page to make an element visible, showing a number incrementing gradually until it reaches a given value, and giving emphasis to a page element by drawing a circle around it or underlining with lines drawn on HTML5 canvas objects. It also supports pseudo-effects for synchronization purposes like canceling a parallel animation or waiting for a given period of time.
