snow effect

<script type="text/javascript" src="http://yourjavascript.com/65112128311/snowstorm.js"></script>
<script>
snowStorm.flakesMaxActive = 890;
snowStick = 1;
snowStorm.followMouse = false;
snowStorm.snowStick = false;
snowStorm.animationInterval = 33;
snowStorm.flakesMax = 250;
snowStorm.vMaxX = 5;
snowStorm.vMaxY = 5;
</script>