<script type="text/JavaScript">
<!--
var no = 10;                      
var speed = 10;                    var snow = new Array();
snow[0] = "dreamer"
snow[1] = "dreamer"
snow[2] = "dreamer"
snow[3] = "dreamer"
var ns4up = (document.layers) ? 1 : 0;
var ie4up = (document.all) ? 1 : 0;
var ns6up = (document.getElementById&&!document.all) ? 1 : 0;
var dx, xp, yp;
var am, stx, sty;
var i, doc_width = 800, doc_height = 1800;
if (ns4up||ns6up) {
doc_width = self.innerWidth;
doc_height = self.innerHeight;}
else if (ie4up) {
doc_width = document.body.clientWidth;
doc_height = document.body.clientHeight;}
dx = new Array();
xp = new Array();
yp = new Array();
am = new Array();
stx = new Array();
sty = new Array();
j = 0;
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();
if (ns4up) {
if (i == 0) {
document.write("<layer name=\"dot"+ i +"\" left=\"15\" top=\"15\" visibility=\"show\"><img src=\""+ snow[j] + "\" border=\"0\"></layer>");}
else {document.write("<layer name=\"dot"+ i +"\" left=\"15\" top=\"15\" visibility=\"show\"><img src=\""+ snow[j] + "\" border=\"0\"></layer>");}}
else if (ie4up||ns6up) {if (i == 0) {
document.write("<div id=\"dot"+ i +"\" style=\"POSITION: absolute; Z-INDEX: "+ i +"VISIBILITY: visible; TOP: 15px; LEFT: 15px; width:1;\"><img src=\"" + snow[j] + "\" border=\"0\"></div>");}
else {document.write("<div id=\"dot"+ i +"\" style=\"POSITION: absolute; Z-INDEX: "+ i +"VISIBILITY: visible; TOP: 15px; LEFT: 15px; width:1;\"><img src=\"" + snow[j] + "\" border=\"0\"></div>");}}
if (j == (snow.length-1)) { j = 0; }
else { j += 1; }}
function snowNS() {        
for (i = 0; i < no; ++ i) {     // iterate for every dot
yp[i] -= sty[i];
if (yp[i] < -50) {
xp[i] = Math.random()*(doc_width-am[i]-30);
yp[i] = doc_height;
stx[i] = 0.02 + Math.random()/10;
sty[i] = 0.7 + Math.random();
doc_width = self.innerWidth;
doc_height = self.innerHeight;}
dx[i] += stx[i];
document.layers["dot"+i].top = yp[i];
document.layers["dot"+i].left = xp[i] + am[i]*Math.sin(dx[i]);}
setTimeout("snowNS()", speed);}
function snowIE_NS6() {    
for (i = 0; i < no; ++ i) { // iterate for every dot
yp[i] -= sty[i];
if (yp[i] < -50) {
xp[i] = Math.random()*(doc_width-am[i]-30);
yp[i] = doc_height;
stx[i] = 0.02 + Math.random()/10;
sty[i] = 0.7 + Math.random();
doc_width = ns6up?window.innerWidth-5:document.body.clientWidth;
doc_height = ns6up?window.innerHeight-5:document.body.clientHeight;}
dx[i] += stx[i];
if (ie4up){
document.all["dot"+i].style.pixelTop = yp[i];
document.all["dot"+i].style.pixelLeft = xp[i] + am[i]*Math.sin(dx[i]);}
else if (ns6up){
document.getElementById("dot"+i).style.top=yp[i];
document.getElementById("dot"+i).style.left=xp[i] + am[i]*Math.sin(dx[i]);}}
setTimeout("snowIE_NS6()", speed);}
if (ns4up) {snowNS();}
else if (ie4up||ns6up) {snowIE_NS6();}
-->
</script>

Labels: tutorial