ÿþif  ((document.getElementById) && 

window.addEventListener || window.attachEvent){



(function(){



//Configure here.



var num = 60;   //Number of flakes

var timer = 30; //setTimeout speed. Varies on different comps



//End.



var y = [];

var x = [];

var fall = [];

var theFlakes = [];

var sfs = [];

var step = [];

var currStep = [];

var h,w,r;

var d = document;

var pix = "px";

var domWw = (typeof window.innerWidth == "number");

var domSy = (typeof window.pageYOffset == "number");

var idx = d.getElementsByTagName('div').length;



if (d.documentElement.style && 

typeof d.documentElement.style.MozOpacity == "string")

num = 12;



for (i = 0; i < num; i++){

sfs[i] = Math.round(1 + Math.random() * 1);



document.write('<div id="flake'+(idx+i)+'" style="position:absolute;top:0px;left:0px;width:'

+sfs[i]+'px;height:'+sfs[i]+'px;background-color:#ffffff;font-size:'+sfs[i]+'px"><\/div>');



currStep[i] = 0;

fall[i] = (sfs[i] == 1)?

Math.round(2 + Math.random() * 2): Math.round(3 + Math.random() * 2);

step[i] = (sfs[i] == 1)?

0.05 + Math.random() * 0.1 : 0.05 + Math.random() * 0.05 ;

}





if (domWw) r = window;

else{ 

 if (d.documentElement && 

 typeof d.documentElement.clientWidth == "number" && 

 d.documentElement.clientWidth != 0)

 r = d.documentElement;

 else{ 

 if (d.body && 

 typeof d.body.clientWidth == "number")

 r = d.body;

 }

}





function winsize(){

var oh,sy,ow,sx,rh,rw;

if (domWw){

 if (d.documentElement && d.defaultView && 

 typeof d.defaultView.scrollMaxY == "number"){

 oh = d.documentElement.offsetHeight;

 sy = d.defaultView.scrollMaxY;

 ow = d.documentElement.offsetWidth;

 sx = d.defaultView.scrollMaxX;

 rh = oh-sy;

 rw = ow-sx;

 }

 else{

 rh = r.innerHeight;

 rw = r.innerWidth;

 }

h = rh - 2;  

w = rw - 2; 

}

else{

h = r.clientHeight - 2; 

w = r.clientWidth - 2; 

}

}





function scrl(yx){

var y,x;

if (domSy){

 y = r.pageYOffset;

 x = r.pageXOffset;

 }

else{

 y = r.scrollTop;

 x = r.scrollLeft;

 }

return (yx == 0)?y:x;

}





function snow(){

var dy,dx;



for (i = 0; i < num; i++){

 dy = fall[i];

 dx = fall[i] * Math.cos(currStep[i]);



 y[i]+=dy;

 x[i]+=dx; 



 if (x[i] >= w || y[i] >= h){

 y[i] = -10;

 x[i] = Math.round(Math.random() * w);

 fall[i] = (sfs[i] == 1)?

 Math.round(2 + Math.random() * 2): Math.round(3 + Math.random() * 2);

 step[i] = (sfs[i] == 1)?

 0.05 + Math.random() * 0.1 : 0.05 + Math.random() * 0.05 ;

 }

 

 theFlakes[i].top = y[i] + scrl(0) + pix;

 theFlakes[i].left = x[i] + scrl(1) + pix;



 currStep[i]+=step[i];

}

setTimeout(snow,timer);

}





function init(){

winsize();

for (i = 0; i < num; i++){

 theFlakes[i] = document.getElementById("flake"+(idx+i)).style;

 y[i] = Math.round(Math.random()*h);

 x[i] = Math.round(Math.random()*w);

}

snow();

}





if (window.addEventListener){

 window.addEventListener("resize",winsize,false);

 window.addEventListener("load",init,false);

}  

else if (window.attachEvent){

 window.attachEvent("onresize",winsize);

 window.attachEvent("onload",init);

} 



})();

}