Quellcode

<script type="text/javascript" language="JavaScript">
// Set the number of snowflakes (more than 30 - 40 not recommended)
var snowmax=25

// Set the colors for the snow. Add as many colors as you like
var snowcolor=new Array("#dbf3ff")

// 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=1.2

// Set the maximal-size of your snowflaxes
var snowmaxsize=30

// Set the minimal-size of your snowflaxes
var snowminsize=10

// 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
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||firefox1

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>