Падающие кленовые листья на сайте

<script language="JavaScript1.2">  

grphcs=new Array(6)  
Image0=new Image();  
Image0.src=grphcs[0]="http://s41.radikal.ru/i091/0810/1d/3d2014027d05.gif";  
Image1=new Image();  
Image1.src=grphcs[1]="http://i057.radikal.ru/0810/2d/46b7bcb0fa0f.gif"  
Image2=new Image();  
Image2.src=grphcs[2]="http://i024.radikal.ru/0810/e3/0f2b9d57f6fe.gif"  
Image3=new Image();  
Image3.src=grphcs[3]="http://s52.radikal.ru/i138/0810/45/5a4911512e87.gif"  
Image4=new Image();  
Image4.src=grphcs[4]="http://s40.radikal.ru/i089/0810/c3/6f897481c234.gif"  
Image5=new Image();  
Image5.src=grphcs[5]="http://s46.radikal.ru/i111/0810/6e/ea3f10d98944.gif"  

Amount=8;  
Ypos=new Array();  
Xpos=new Array();  
Speed=new Array();  
Step=new Array();  
Cstep=new Array();  
ns=(document.layers)?1:0;  
ns6=(document.getElementById&&!document.all)?1:0;  

if (ns){  
for (i = 0; i < Amount; i++){  
var P=Math.floor(Math.random()*grphcs.length);  
rndPic=grphcs[P];  
document.write("<LAYER NAME='sn"+i+"' LEFT=0 TOP=0><img src="+rndPic+"></LAYER>");  
}  
}  
else{  
document.write('<div style="position:absolute;top:0px;left:0px"><div style="position:relative">');  
for (i = 0; i < Amount; i++){  
var P=Math.floor(Math.random()*grphcs.length);  
rndPic=grphcs[P];  
document.write('<img id="si'+i+'" src="'+rndPic+'" style="position:absolute;top:0px;left:0px">');  
}  
document.write('</div></div>');  
}  
WinHeight=(ns||ns6)?window.innerHeight:window.document.body.clientHeight;  
WinWidth=(ns||ns6)?window.innerWidth-70:window.document.body.clientWidth;  
for (i=0; i < Amount; i++){  
Ypos[i] = Math.round(Math.random()*WinHeight);  
Xpos[i] = Math.round(Math.random()*WinWidth);  
Speed[i]= Math.random()*5+3;  
Cstep[i]=0;  
Step[i]=Math.random()*0.1+0.05;  
}  
function fall(){  
var WinHeight=(ns||ns6)?window.innerHeight:window.document.body.clientHeight;  
var WinWidth=(ns||ns6)?window.innerWidth-70:window.document.body.clientWidth;  
var hscrll=(ns||ns6)?window.pageYOffset:document.body.scrollTop;  
var wscrll=(ns||ns6)?window.pageXOffset:document.body.scrollLeft;  
for (i=0; i < Amount; i++){  
sy = Speed[i]*Math.sin(90*Math.PI/180);  
sx = Speed[i]*Math.cos(Cstep[i]);  
Ypos[i]+=sy;  
Xpos[i]+=sx;  
if (Ypos[i] > WinHeight){  
Ypos[i]=-60;  
Xpos[i]=Math.round(Math.random()*WinWidth);  
Speed[i]=Math.random()*5+3;  
}  
if (ns){  
document.layers['sn'+i].left=Xpos[i];  
document.layers['sn'+i].top=Ypos[i]+hscrll;  
}  
else if (ns6){  
document.getElementById("si"+i).style.left=Math.min(WinWidth,Xpos[i]);  
document.getElementById("si"+i).style.top=Ypos[i]+hscrll;  
}  
else{  
eval("document.all.si"+i).style.left=Xpos[i];  
eval("document.all.si"+i).style.top=Ypos[i]+hscrll;  
}  
Cstep[i]+=Step[i];  
}  
setTimeout('fall()',20);  
}  

window.onload=fall  
//-->  
</script>