<script LANGUAGE="JavaScript1.2">
//<!-- Begin
var no = 5; // количество рисунков
var speed = 20; // скорость движения
var snowflake = "http://templier.do.am/snow.gif"; //адрес рисунка

var dx, xp, yp;
var am, stx, sty;
var i;

var doc_width = document.body.offsetWidth;
var doc_height = 250;

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:absolute;left:15px;top:15px;' ");
document.write("><img src=\"");
document.write(snowflake + "\" border=\"0\"></div>");

}

function snow() {
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();
}
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("snow()", speed);
}

snow();

// End -->

</script>