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|
<script type="text/javascript">
<!--
/* Snow Effect Script
Submitted by Altan d.o.o. (snow@altan.hr, http://www.altan.hr/snow/index.html)
Permission granted to Dynamicdrive.com to feature script in archive
For full source code to this script, visit http://dynamicdrive.com */
var snowsrc="dhtml_snowfall.gif"
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 = 600;
if (ns4up||ns6up)
{
doc_width = self.innerWidth;
doc_height = self.innerHeight;
}
else if (ie4up)
{
doc_width = document.body.clientWidth;
doc_height = document.body.clientHeight;
}
var anzahlF
// abhaengig von angezeigter Bildschirmgroesse:
anzahlF = doc_width*doc_height/10000
// alternativ: feste Anzahl
// anzahlF = 100
var no = anzahlF
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();
if (ns4up)
{
if (i == 0)
{
document.write("<layer name=\"dot"+ i +"\" left=\"15\" top=\"15\" visibility=\"show\"><a href=\"http://dynamicdrive.com/\"><img src='"+snowsrc+"' border=\"0\"></a></layer>");
}
else
{
document.write("<layer name=\"dot"+ i +"\" left=\"15\" top=\"15\" visibility=\"show\"><img src='"+snowsrc+"' 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;\"><a href=\"http://dynamicdrive.com\"><img src='"+snowsrc+"' border=\"0\"></a></div>");
}
else
{
document.write("<div id=\"dot"+ i +"\" style=\"position: absolute; z-index: "+ i +"; visibility: visible; top: 15px; left: 15px;\"><img src='"+snowsrc+"' border=\"0\"></div>");
}
}
}
function snowNS()
{
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 = 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()", 10);
}
function snowIE_NS6()
{
hscrll = (document.layers) ? window.pageYOffset : document.body.scrollTop;
wscrll = (document.layers) ? window.pageXOffset : document.body.scrollLeft;
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 = ns6up?window.innerWidth : document.body.clientWidth;
doc_height = ns6up?window.innerHeight : document.body.clientHeight;
}
dx[i] += stx[i];
if (ie4up)
{
document.all["dot"+i].style.pixelTop = yp[i]+hscrll;
document.all["dot"+i].style.pixelLeft = xp[i] + am[i]*Math.sin(dx[i])+wscrll;
}
else if (ns6up)
{
document.getElementById("dot"+i).style.top=yp[i]+hscrll;
document.getElementById("dot"+i).style.left=xp[i] + am[i]*Math.sin(dx[i])+wscrll;
}
}
setTimeout("snowIE_NS6()", 10);
}
if (ns4up)
{
snowNS();
}
else if (ie4up||ns6up)
{
snowIE_NS6();
}
//-->
</script> |
