With this DHTML script, a butterfly wonders aimlessly around your page. The little insect can be dismissed by clicking on it. Script updated for efficiency, NS6 compatibility, plus ability to animate multiple butterflies

This is a collection of scripts that produce firework animations on your web page. Unlike Flash or Java Applets these JavaScript (or DHTML) animations allow the fireworks to appear at random places all over your web page, on top of your content, making much more of a visual impact. If the fireworks are interfering with your page content (e.g. you can't click a link) then you can STOP the show at any time. Another link can START start the show up again.
The scripts fall into 2 categories, Image Scripts and Particle Scripts. Each category is further sub divided into "Travel" and "Static". Choose the one that suits your site best.

Plug and play installation. Simply define on your page a list of selectable style sheets (using: ), and that's it. The script automatically makes each of these external style sheets selectable by the user, dynamically applying the style sheet to the page while disabling any previously active alternate styles.
One main style sheet, many secondary ones. The script lets you maintain a primary style sheet on the page that is never disabled while letting the user choose from a list of alternate style sheets to add to the page. This lets you build off of your main style sheet with the alternate ones, so the later merely contain rules that are new or modified from the main one.
Customizable memory duration. Specify exactly how long you want the user's style selection to be remembered, in days, whether it's 5 days, or 180 days. Once this period has expired, the style sheet reverts back to the default one for that user. Uses site wide cookies for persistence across entire site.
Indicate currently active alternate stylesheet. If you're using radio buttons or a select menu as the interface for choosing an alternate style sheet, this script can automatically check/select the radio button/select option on the page that corresponds to the currently applied alternate style sheet.
Auto apply random stylesheet instead. New! Instead of letting the user manually select an alternate stylesheet to use, this script can instead randomly pick from your list of secondary stylesheets and apply one to the page automatically. Three different randomized settings are supported: "eachtime", "sessiononly", or "x days" to let you fine tune exactly how the random feature behaves.

The javascript offered here does exactly that. Especially useful if you have web page dynamic menus using such DIVs. The navigation will not be obscured anymore.

The effect is achived by changing the z-index style property of HTML DIV elements. Initial z-index values are not neccessary

1. Introduction
The 'preface' of this documentation. With How-Tos.


2. 3D Math Basics
Some 3D geometry math basics. Don't bother too much since we've tried to hide that stuff.


3. Technical Background
Understand the special approaches 3dhtml is using.


4. Tutorials
Learn how 3dhtml works with these helpful tutorials.


5. API Reference
Start programming with this documentation. Every object is described with its constructors, methods, and usage.


6. Downloads
Download the 3dhtml toolkit, the documenation, and more.


7. Appendix
Legal things and thanks.