Spritesheet Animation Manager: Animate graphics using CSS sprites

This object can animate graphics using CSS sprites.

It takes a CSS style that defines a sprite image as background containing the multiple images to show in an animation.

The object can add individual frame images, rows or columns of images in the sprite to define the frames of the animation.

It can start an animation by switching the position of the background property of the CSS style to the frame of the sprite to show.

The object will switch to other animation frames after a given playback delay time between frames.

It can also stop the animation making it show a specific animation frame defined by number.

The animation may loop going back to the start frame after the last or going back and fourth inverting the animation direction.