// Максимальное количество снежинок 
var snowmax=30; 
var snowcolor=new Array("#AAAACC","#DDDDFF","#CCCCDD","#F3F3F3","#F0FFFF"); 
var snowtype=new Array("Times"); 
var snowletter=new Array("/js/snezhinka_5.gif", "/js/snow_.gif");
//Скорость  
var sinkspeed=0.5; 
//Максимальный размер снежинок 
var snowmaxsize=50; 
//Минимальный размер снежинок 
var snowminsize=8 
 
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/); 
 
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.width=snow[i].size;
    snow[i].style.color=snowcolor[randommaker(snowcolor.length)]; 
    snow[i].sink=sinkspeed*snow[i].size/5; 
    snow[i].posx=randommaker(marginright-snow[i].size); 
    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])) { 
      snow[i].posx=randommaker(marginright-snow[i].size); 
      snow[i].posy=0; 
    } 
  } 
  var timer=setTimeout("movesnow()",50); 
} 
 
for (i=0;i<=snowmax;i++) {
    document.write("<img id='s"+i+"' style='z-index: 1000000;position:absolute;top:-"+snowmaxsize+"' src='"+snowletter[randommaker(snowletter.length)]+"'/>")
    //document.getElementById('s'+i).style.display='none';
}

initsnow();