var snowmax=30;  
var snowcolor=new Array("#AAAACC","#DDDDFF","#CCCCDD","#F3F3F3","#F0FFFF")  ;
var snowtype=new Array("Arial Black","Arial Narrow","Times","Comic Sans MS");  
var snowletter="<img src='images/snow3.gif'>"  ;
var sinkspeed=0.9  ;
var snowmaxsize=22  ;
var snowminsize=20  ;
var snowingzone=1  ;
var snow=new Array()  ;
var marginbottom  ;
var marginright  ;
var timer  ;;
var i_snow=0  ;
var x_mv=new Array();  
var crds=new Array();  
var lftrght=new Array();  
var browserinfos=navigator.userAgent  ;
var ie5=document.all&&document.getElementById&&!browserinfos.match(/Opera/) ; 
var ns6=document.getElementById&&!document.all  ;
var opera=browserinfos.match(/Opera/)  ;
var browserok=ie5||ns6||opera  ;
function randommaker(range) {  
	rand=Math.floor(range*Math.random())  ;
	return rand  ;
} 
	
function initsnow() {  
	if (ie5) {  
		marginbottom = document.body.clientHeight ; 
		marginright = document.body.clientWidth; 
	}  
	else if (ns6) {  
		marginbottom = document.body.clientHeight  ;
		marginright = window.innerWidth ; 
	}  
	else if (opera) {  
		marginbottom = document.documentElement.clientHeight ; 
		marginright = document.body.clientWidth  ;
	}  
	marginright -= snowmaxsize;
	var snowsizerange=snowmaxsize-snowminsize  ;
	for (i=0;i<=snowmax;i++) {  
		crds[i] = 0;  
		lftrght[i] = Math.random()*15;  
		x_mv[i] = 0.03 + Math.random()/10;  
		snow[i]=document.getElementById("s"+i) ; 
		snow[i].style.fontFamily=snowtype[randommaker(snowtype.length)]  ;
		snow[i].size=randommaker(snowsizerange)+snowminsize  ;
		snow[i].style.fontSize=snow[i].size + "px"  ;
		snow[i].firstChild.style.width=snow[i].size + "px"  ;
		snow[i].firstChild.style.height=snow[i].size + "px"  ;
		snow[i].style.color=snowcolor[randommaker(snowcolor.length)]  ;
		snow[i].sink=sinkspeed*snow[i].size/5  ;
		if (snowingzone==1) {snow[i].posx=randommaker(marginright-snow[i].size)} ;
		if (snowingzone==2) {snow[i].posx=randommaker(marginright/2-snow[i].size)} ; 
		if (snowingzone==3) {snow[i].posx=randommaker(marginright/2-snow[i].size)+marginright/4}  ;
		if (snowingzone==4) {snow[i].posx=randommaker(marginright/2-snow[i].size)+marginright/2}  ;
		snow[i].posy=randommaker(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 movesnow() {
	for (i=0;i<=snowmax;i++) {  
		crds[i] += x_mv[i];  
		snow[i].posy+=snow[i].sink  ;
		snow[i].style.left=snow[i].posx+lftrght[i]*Math.sin(crds[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*lftrght[i])){  
			if (snowingzone==1) {snow[i].posx=randommaker(marginright-snow[i].size)}  
			if (snowingzone==2) {snow[i].posx=randommaker(marginright/2-snow[i].size)}  
			if (snowingzone==3) {snow[i].posx=randommaker(marginright/2-snow[i].size)+marginright/4}  
			if (snowingzone==4) {snow[i].posx=randommaker(marginright/2-snow[i].size)+marginright/2}  
			snow[i].posy=0  ;
		}  
	}  
	var timer=setTimeout("movesnow()",50)  
}  

for (i=0;i<=snowmax;i++) {  
	document.write("<span id='s"+i+"' style='position:absolute;top:-"+snowmaxsize+"'>"+snowletter+"</span>")  
}  

if (browserok) {  
	window.onload=initsnow  
}