// CREDITS: PROMOIL

// Set the number of snowflakes (more than 30 - 40 not recommended)
var snowmax=35

// Set the colors for the snow. Add as many colors as you like
var snowcolor=new Array("#aaaacc","#ddddFF","#6f6fe6")

// 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 maximal-size of your snowflaxes
var snowmaxsize=42
    
// Set the minimal-size of your snowflaxes
var snowminsize=20   
    
// 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

///////////////////////////////////////////////////////////////////////////
// CONFIGURATION ENDS HERE
///////////////////////////////////////////////////////////////////////////


// Do not edit below this line
var snow=new Array()
var marginbottom_snow
var marginright_snow
var timer_snow
var i_snow=0
var x_mv=new Array();
var crds=new Array();
var lftrght=new Array();
var browserinfos=navigator.userAgent 
var ie5_snow=document.all&&document.getElementById&&!browserinfos.match(/Opera/)
var ns6_snow=document.getElementById&&!document.all
var opera_snow=browserinfos.match(/Opera/)  
var browserok=ie5_snow||ns6_snow||opera_snow

function randommaker(range_snow) {    
  rand_snow=Math.floor(range_snow*Math.random())
    return rand_snow
}

function initsnow() {
  if (ie5_snow || opera_snow) {
    marginbottom_snow = document.body.clientHeight
    marginright_snow = document.body.clientWidth
  }
  else if (ns6_snow) {
    marginbottom_snow = window.innerHeight
    marginright_snow = window.innerWidth
  }
  var snowsizerange=snowmaxsize-snowminsize
  for (i_snow=0;i_snow<=snowmax;i_snow++) {
    crds[i_snow] = 0;
      lftrght[i_snow] = Math.random()*15;
      x_mv[i_snow] = 0.03 + Math.random()/10;
    snow[i_snow]=document.getElementById("s"+i_snow);
    snow[i_snow].style.fontFamily=snowtype[randommaker(snowtype.length)];
    snow[i_snow].size=randommaker(snowsizerange)+snowminsize;
    snow[i_snow].style.fontSize=snow[i_snow].size + 'px';
    snow[i_snow].style.color=snowcolor[randommaker(snowcolor.length)];
    snow[i_snow].sink=sinkspeed*snow[i_snow].size/5;
    if (snowingzone==1) {snow[i_snow].posx=randommaker(marginright_snow-snow[i_snow].size)}
    if (snowingzone==2) {snow[i_snow].posx=randommaker(marginright_snow/2-snow[i_snow].size)}
    if (snowingzone==3) {snow[i_snow].posx=randommaker(marginright_snow/2-snow[i_snow].size)+marginright_snow/4}
    if (snowingzone==4) {snow[i_snow].posx=randommaker(marginright_snow/2-snow[i_snow].size)+marginright_snow/2}
    snow[i_snow].posy=randommaker(6*marginbottom_snow-marginbottom_snow-6*snow[i_snow].size)
    snow[i_snow].style.left=snow[i_snow].posx + 'px';
    snow[i_snow].style.top=snow[i_snow].posy + 'px';
  }
  movesnow()
}

function movesnow() {
  for (i_snow=0;i_snow<=snowmax;i_snow++) {
    crds[i_snow] += x_mv[i_snow];
    snow[i_snow].posy+=snow[i_snow].sink
    snow[i_snow].style.left=snow[i_snow].posx+lftrght[i_snow]*Math.sin(crds[i_snow])+ 'px';
    snow[i_snow].style.top=snow[i_snow].posy + 'px'
    
    if (snow[i_snow].posy>=marginbottom_snow-6*snow[i_snow].size || parseInt(snow[i_snow].style.left)>(marginright_snow-3*lftrght[i_snow])){
      if (snowingzone==1) {snow[i_snow].posx=randommaker(marginright_snow-snow[i_snow].size)}
      if (snowingzone==2) {snow[i_snow].posx=randommaker(marginright_snow/2-snow[i_snow].size)}
      if (snowingzone==3) {snow[i_snow].posx=randommaker(marginright_snow/2-snow[i_snow].size)+marginright_snow/4}
      if (snowingzone==4) {snow[i_snow].posx=randommaker(marginright_snow/2-snow[i_snow].size)+marginright_snow/2}
      snow[i_snow].posy=0
    }
  }
  var timer_snow=setTimeout("movesnow()",50)
}

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