<head>
<script language="javascript">
// Nevando en la pagina por Eloi Gallés Villaplana
//
// Este script y otros muchos pueden
// descarse on-line de forma gratuita
// en El Código:
www.elcodigo.net
//configuracion
var numero =
8 ; //numero de copos
var velocidad =
4 ; //velocidad a la que caen
var imagennieve = "
/images/bg_WhitePaper.gif"; //imagen para el copito de nieve
//deteccion navegadores
var ns4arriba = (document.layers) ? 1 : 0;
var ie4arriba = (document.all) ? 1 : 0;
var dx, xp, yp;
var am, stx, sty;
var i, doc_ancho = 1024, doc_alto = 768;
function nieva() {
if (ns4arriba) {
doc_ancho = self.innerWidth;
doc_alto = self.innerHeight;
} else if (ie4arriba) {
doc_ancho = document.body.clientWidth;
doc_alto = document.body.clientHeight;
}
dx = new Array();
xp = new Array();
yp = new Array();
am = new Array();
stx = new Array();
sty = new Array();
for (i = 0; i < numero; ++ i) {
dx[i] = 0;
xp[i] = Math.random()*(doc_ancho-50);
yp[i] = Math.random()*doc_alto;
am[i] = Math.random()*20;
stx[i] = 0.02 + Math.random()/10;
sty[i] = 0.7 + Math.random();
if (ns4arriba) {
if (i == 0) {
document.write("<layer name="dot"+ i +"" left="15" ");
document.write("top="15" visibility="show"><img src="");
document.write(imagennieve + "" border="0"></layer>");
} else {
document.write("<layer name="dot"+ i +"" left="15" ");
document.write("top="15" visibility="show"><img src="");
document.write(imagennieve + "" border="0"></layer>");
}
} else if (ie4arriba) {
if (i == 0) {
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(imagennieve + "" border="0"></div>");
} else {
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(imagennieve + "" border="0"></div>");
}
}
}
if (ns4arriba) {
nieve_netscape();
} else if (ie4arriba) {
nieve_explorer();
}
}
function nieve_netscape() {
for (i = 0; i < numero; ++ i) {
yp[i] += sty[i];
if (yp[i] > doc_alto) {
xp[i] = Math.random()*(doc_ancho-am[i]-30);
yp[i] = 0;
stx[i] = 0.02 + Math.random()/10;
sty[i] = 0.7 + Math.random();
doc_ancho = self.innerWidth;
doc_alto = 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("nieve_netscape()", velocidad);
}
function nieve_explorer() {
for (i = 0; i < numero; ++ i) {
yp[i] += sty[i];
if (yp[i] > doc_alto-10) {
xp[i] = Math.random()*(doc_ancho-am[i]-30);
yp[i] = 0;
stx[i] = 0.02 + Math.random()/10;
sty[i] = 0.7 + Math.random();
doc_ancho = document.body.clientWidth;
doc_alto = document.body.clientHeight;
}
dx[i] += stx[i];
document.all["dot"+i].style.pixelTop = yp[i];
document.all["dot"+i].style.pixelLeft = xp[i] + am[i]*Math.sin(dx[i]);
}
setTimeout("nieve_explorer()", velocidad);
}
</script>
</head>
<body>
<!-- Para que comience a nevar -->
<script language="javascript">nieva()</script>
</body>
