// Set the number of snowflakes (more than 30 - 40 not recommended)
var snowmax=30

 // Set the colors for the snow. Add as many colors as you like
    var snowcolor=new Array("#AAAACC","#DDDDFF","#CCCCDD","#F3F3F3","#F0FFFF","FFFFFF")
 // Set the fonts, that create the snowflakes. Add as many fonts as you like
 var snowtype=new Array("Arial Black","Arial Narrow","Times","Comic Sans MS")
 // Set the letter that creates your snowflake (recommended: * )
 var snowletter="*"
 // Set the speed of sinking (recommended values range from 0.3 to 2)
 var sinkspeed=0.6
 // Set the maximum-size of your snowflakes
 var snowmaxsize=22
 // Set the minimal-size of your snowflakes
 var snowminsize=8
 // Set the snowing-zone
 // Set 1 for all-over-snowing, set 2 for left-side-snowing 
 // Set 3 for center-snowing, set 4 for right-side-snowing
 var snowingzone=1

//--SNOWCODE--//

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 || opera) {
	    marginbottom = document.body.clientHeight
		marginright = document.body.clientWidth
		}
	else if (ns6) {
	    marginbottom = window.innerHeight
		marginright = window.innerWidth
		}
	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
		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
		snow[i].style.top=snow[i].posy
	    }
	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]);
	snow[i].style.top=snow[i].posy
	    
	    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; z-index: 5000; top:-"+snowmaxsize+"'>"+snowletter+"</span>")
	}
if (browserok) {
    window.onload=initsnow
	}