<script>  
  // 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","#ccccDD")  
  // 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=22  
  // Set the minimal-size of your snowflaxes  
  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=3  

  // Do not edit below this line  
  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;top:-"+snowmaxsize+"'>"+snowletter+"</span>")  
  }  
  if (browserok) {  
   window.onload=initsnow  
  }  
  </script>