Снег на JS

<style>html,body{margin:0;height:100%;}body{background:#6B92B9}</style>

<script language="JavaScript">

var snowMax = 35;

var snowColor = ["#DDD", "#EEE"];

var snowEntity = "•";

var snowSpeed = 0.75;

var snowMinSize = 8;

var snowMaxSize = 24;

var snow = [],

    pos = [],

    coords = [],

    lefr = [],

    marginBottom,

    marginRight;

function randomise(range) {

    rand = Math.floor(range * Math.random());

    return rand;

 

function initSnow() {

    var snowSize = snowMaxSize - snowMinSize;

    marginBottom = document.body.scrollHeight - 5;

    marginRight = document.body.clientWidth - 15;

    for (i = 0; i <= snowMax; i++) {

        coords[i] = 0;

        lefr[i] = Math.random() * 15;

        pos[i] = 0.03 + Math.random() / 10;

        snow[i] = document.getElementById("flake" + i);

        snow[i].style.fontFamily = "inherit";

        snow[i].size = randomise(snowSize) + snowMinSize;

        snow[i].style.fontSize = snow[i].size + "px";

        snow[i].style.color = snowColor[randomise(snowColor.length)];

        snow[i].style.zIndex = 1000;

        snow[i].sink = snowSpeed * snow[i].size / 5;

        snow[i].posX = randomise(marginRight - snow[i].size);

        snow[i].posY = randomise(2 * marginBottom - marginBottom - 2 * snow[i].size);

        snow[i].style.left = snow[i].posX + "px";

        snow[i].style.top = snow[i].posY + "px";

    }

    moveSnow();

function resize() {

    marginBottom = document.body.scrollHeight - 5;

    marginRight = document.body.clientWidth - 15;

function moveSnow() {

    for (i = 0; i <= snowMax; i++) {

        coords[i] += pos[i];

        snow[i].posY += snow[i].sink;

        snow[i].style.left = snow[i].posX + lefr[i] * Math.sin(coords[i]) + "px";

        snow[i].style.top = snow[i].posY + "px";

 

        if (snow[i].posY >= marginBottom - 2 * snow[i].size || parseInt(snow[i].style.left) > (marginRight - 3 * lefr[i])) {

            snow[i].posX = randomise(marginRight - snow[i].size);

            snow[i].posY = 0;

        }

    }

    setTimeout("moveSnow()", snowRefresh);

for (i = 0; i <= snowMax; i++) {

    document.write("<span id='flake" + i + "' style='" + snowStyles + "position:absolute;top:-" + snowMaxSize + "'>" + snowEntity + "</span>");

window.onresize = resize;

window.onload = initSnow;

</script>