se4a, снежок
<!DOCTYPE HTML>
<html>
<head>
<title>Untitled</title>
<style type="text/css">
body{
background-color: rgb(0, 255, 255);
}
</style>
</head>
<body>
<script>
/////////////////////////////////////////////////
//Автор Скрипта - Федор А. Нохрин aka FANTAzeRus/
/////////////////////////////////////////////////
var no = 15; // колличество снежинок
var speed =25; // скорость снежинок
var snowflake = "http://www.sbor.net/~fantazer/fanta/sneg.gif";
var ns4up = 0;
var ie4up = 1
var dx, xp, yp;
var am, stx, sty;
var i, doc_width = 800, doc_height = 600;
doc_width = document.documentElement.scrollWidth;
doc_height = Math.max(document.documentElement.scrollHeight,document.documentElement.clientHeight);
dx = new Array();
xp = new Array();
yp = new Array();
am = new Array();
stx = new Array();
sty = new Array();
for (i = 0; i < no; ++ i)
{
dx[i] = 0;
xp[i] = Math.random()*(doc_width-50);
yp[i] = Math.random()*doc_height;
am[i] = Math.random()*20;
stx[i] = 0.02 + Math.random()/10;
sty[i] = 0.7 + Math.random();
document.write("<div id=\"dot"+ i +"\" style=\"POSITION: ");
document.write("absolute; Z-INDEX: "+ i +"; VISIBILITY: ");
document.write("visible; TOP: 15px; LEFT: 15px;\"><img src=\"");
document.write(snowflake + "\" border=\"0\"></div>");
}
function snowIE()
{
for (i = 0; i < no; ++ i)
{
yp[i] += sty[i];
if (yp[i] > doc_height-50)
{
xp[i] = Math.random()*(doc_width-am[i]-30);
yp[i] = 0;
stx[i] = 0.02 + Math.random()/10;
sty[i] = 0.7 + Math.random();
doc_width = document.documentElement.scrollWidth;
doc_height = Math.max(document.documentElement.scrollHeight,document.documentElement.clientHeight);
}
dx[i] += stx[i];
document.getElementById("dot"+i).style.top = yp[i]+"px";
document.getElementById("dot"+i).style.left = xp[i] + am[i]*Math.sin(dx[i])+"px";
}
setTimeout("snowIE()", speed);
}
snowIE();
</script>
</body>
</html>