function rnd(){return Math.random();} 
function xRnd(){return (rnd()/10);} 
function yRnd(){return (2 + 2*( .5 - rnd() ));} 
var letitsnow = true; 
var flakes = Array("http://www.atlanticband.com/images/flake1.gif","http://www.atlanticband.com/images/flake2.gif","http://www.atlanticband.com/images/flake3.gif","http://www.atlanticband.com/images/flake4.gif"); 
var numflakes = 30; 
var T = 50; 
var dx, xPos, yPos, am, vx, vy, obj, i; 
var winwidth = 640; 
var winheight = 480; 

function sizeIt() 
{ 
window.winwidth = window.innerWidth?window.innerWidth:document.body.clientWidth; 
window.winheight = window.innerHeight?window.innerHeight:document.body.clientHeight; 
} 

dx = new Array(); 
xPos = new Array(); 
yPos = new Array(); 
sway = new Array(); 
var swaymax = 20; 
vx = new Array(); 
vy = new Array(); 
sizeIt(); 
document.write("<STYLE type=\"text/css\">\n.flk {position:absolute;top:-100;}<\/STYLE>"); 
for (i = 0; i < numflakes; i++) 
{ 
  var thisflake = "" + flakes[Math.floor(rnd()*flakes.length)]; 
  dx[i] = 0; 
  
  xPos[i] = rnd()*(window.winwidth-30) +10; 
  yPos[i] = rnd()*window.winheight; 
  sway[i] = rnd()*swaymax; 
  vx[i] = xRnd(); 
  vy[i] = yRnd(); 
  document.write("<div id=\"f"+ i +"\" class=\"flk\"><img src=\""); 
  document.write(thisflake + "\" border=\"0\"><\/div>"); 
} 


function snowMove(id,left,top) 
{ 
  obj = document.getElementById?document.getElementById(id).style: 
  document.all?document.all[id].style: 
  document.layers?document.layers[id]:null; 
  if (obj) 
  { 
    obj.left=left; 
    obj.top=top; 
  } 
} 

function snowSwitch(s) 
{ 
  if ( s == "on" ) 
  { 
    if ( window.letitsnow != true ) 
    {  
      window.letitsnow = true; 
      doSnow(); 
    } 
  } else if ( s == "off" ) 
  { 
    window.letitsnow = false; 
    hideSnow(); 
  } 
} 

function hideSnow() 
{ 
  for (i = 0; i < numflakes; ++ i) { 
    snowMove("f"+i,-100,-100); 
  } 
} 

function doSnow() { 
if (letitsnow){ 
  sizeIt(); 
  delta = (window.pageYOffset!=null)?window.pageYOffset:document.body.scrollTop; 
  for (i = 0; i < numflakes; ++ i) { 
    yPos[i] += vy[i]; 
    if (yPos[i] > window.winheight+delta-50) { 
      xPos[i] = rnd()*(window.winwidth-sway[i]-30); 
      yPos[i] = delta; 
      vx[i] = xRnd(); 
      vy[i] = yRnd(); 
    } 
    dx[i] += vx[i]; 
    snowMove("f"+i,xPos[i]+sway[i]*Math.cos(dx[i]),yPos[i]); 
  } 
  setTimeout("doSnow()", T); 
}  
} 


window.onload=doSnow;