How to add snow effect to blogspot or website

You are having a nice site, but want some snow effect for it for christmas ?


<*script* src="http://snow-effect.googlecode.com/files/snow.js" type="text/javascript">
/***********************************************
* Snow Effect without images-by Kurt Grigg at http://www.btinternet.com/~kurt.grigg/javascript
* Script featured & available at Dynamic Drive at http://www.dynamicdrive.com/
* Please keep this notice intact
***********************************************/
<*/script*>

Add this code after tag or simply in a post , but remove the * from <*script* <*/script*>