// JavaScript Document
// Tu si nastavte pocet vlociek (viac ako 40 neodporucam)
var snowmax=8

// Tu si nastavte farbu vlociek... Mozete ich tu dat kolko len chcete...
var snowcolor=new Array("#F0F0F0")

// Pisma, ktore budu pouzite na vlocky... Tu ich moze byt tiez kopa, ale pozor na podporu fontov!
var snowtype=new Array("Arial Black","Arial Narrow","Times","Comic Sans MS")

// Tu nastavte pismeno ktore bude pouzite na vlocky (odporoucam pouzit *)
var snowletter="*"

// Nastavte si rychlost (odporoucam od 0.5 do 2.0)
var sinkspeed=1.0

// Nastavte maximalnu velkost vlocky...
var snowmaxsize=30

// Nastavte minimalnu velkost vlocky...
var snowminsize=20

// Nastavte miesto kde bude snezenie...
// Nastavte 1 pre celu stranku, 2 pre lavu stranu, 3 pre stred a 4 pre pravu stranu... 
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 || 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:2;top:-"+snowmaxsize+"'>"+snowletter+"</span>")
}
if (browserok) {
window.onload=initsnow
}