about the snow effects

i saw this tips here
https://help.forumotion.com/t63491-create-a-loading-page-before-accessing-your-forum

i want to ask something how can i do the same effects the snow effect in my HTML page?
what is the code and for that?

here is the forum posted by sir leeloo ; http://testzen.forumactif.com/

Add this before the closing head tag (</head>)

Code:

<script src="http://astuforum.free.fr/js/snow.js"></script>


So it should be something like this:

Code:

<script src="http://astuforum.free.fr/js/snow.js"></script>
</head>


wow its too nice e mark..
thanks for helping me always.
it solved now