I am not sure about the use of displaying fireworks animation on a web page but if you want to burst fireworks on a web page, Fireworks.js is a free JavaScript animation library that can be used to render cool fireworks effects on a web page.

The fireworks engine is governed by a number of configuration options for controlling magnitude, radius and density of fireworks particles – a really creative and innovative use of JavaScript. Do check it out!

Features

• Random explosion patterns and colours
• Customizable API allows for additional firework types and effects
• Optional script-driven sound effects provided by SoundManager API
• Standard DOM calls work under XML doctypes