var snowmax=40
var snowletter=["<img src=/img/snow/s1.png>","<img src=/img/snow/s2.png>","<img src=/img/snow/s3.png>","<img src=/img/snow/s4.png>","<img src=/img/snow/s5.png>","<img src=/img/snow/s6.png>"];
var sinkspeed=0.6
var snowmaxsize=24
var snowminsize=8
var snowsizerange=snowmaxsize-snowminsize
var snowingleft=0.02
var snowingwidth=0.96
var stepTime=100
var snow=new Array()
var marginbottom
var marginright
var timer
var x_mv=new Array(); var crds=new Array(); var lftrght=new Array();
var browserinfos=navigator.userAgent
d=document
var isOpera=self.opera
var ie5=d.all&&d.getElementById&&!isOpera
var ns6=d.getElementById&&!d.all
var browserok=ie5||ns6||isOpera

function randommaker(range){return Math.floor(range*Math.random())}

function botRight() {
  if(ie5||isOpera) {
    marginbottom=d.body.clientHeight;  
    marginright=d.body.clientWidth;
  }
  else
    if(ns6) {
      marginbottom=innerHeight; marginright=innerWidth;
    }
}

function checkPgDn() {
  scrltop=ns6?pageYOffset:document.body.scrollTop;
}

function initsnow() {
  checkPgDn();if(ns6)setInterval("checkPgDn()",999);
  botRight();
  for (i=0;i<=snowmax;i++) {
    crds[i] = 0;                      
    lftrght[i] = Math.random()*20;         
    x_mv[i] = 0.03 + Math.random()/10;
    snow[i]=d.getElementById("s"+i)
    snow[i].size=randommaker(snowsizerange)+snowminsize
    snow[i].sink=sinkspeed*snow[i].size/5
    newPosSnow(randommaker(2000-3*snow[i].size));
  }
  movesnow();
}

function newPosSnow(y) {
  var o;
  snow[i].posx=randommaker(marginright*snowingwidth-2*snow[i].size)+marginright*snowingleft
  snow[i].posy=y+(ns6?pageYOffset:d.body.scrollTop);
  snow[i].size=randommaker(snowsizerange)+snowminsize;
  if(snow[i].hasChildNodes()&&(o=snow[i].childNodes[0]).tagName=='IMG') o.width=o.height=randommaker(snowsizerange)+snowminsize;
}

function movesnow() {
  for (i=0;i<=snowmax;i++) {
    snow[i].style.top=snow[i].posy+=snow[i].sink+lftrght[i]*Math.sin(crds[i])/3;
    crds[i] += x_mv[i];
    snow[i].style.left=snow[i].posx+lftrght[i]*Math.sin(crds[i]);
    if(snow[i].posy>=marginbottom-3*snow[i].size+scrltop || parseInt(snow[i].style.left)>(marginright-3*lftrght[i]))newPosSnow(0);
  }
  var timer=setTimeout("movesnow()",stepTime)
}

for (i=0;i<=snowmax;i++) {
  d.write("<span id='s"+i+"' style='z-index:100;position:absolute;top:-"+snowmaxsize+"'>"
    +snowletter[Math.floor(snowletter.length*Math.random())]+"</span>")
}

onmousewheel = onscroll = function(){checkPgDn()}
onresize = function(){botRight();}
if(browserok)setTimeout("initsnow()",100)