/**
 * X-Team Snow
 * @author Andrew Valums
 *
 * Copyright (c) 2009 X-Team, http://x-team.com
 */
(function()
{function k(a,b,c)
{
if(a.addEventListener)a.addEventListener(b,c,false);
else a.attachEvent&&a.attachEvent("on"+b,c)
}
function g(a)
{
if
(typeof window.onload!="function")window.onload=a;
else
{
var b=window.onload;
window.onload=function(){b();a()}}}
function h()
{
var a={};
for(type in{Top:"",Left:""})
{
var b=type=="Top"?"Y":"X";
if(typeof window["page"+b+"Offset"]!="undefined")a[type.toLowerCase()]=window["page"+b+"Offset"];
else
{
b=document.documentElement.clientHeight?document.documentElement:document.body; 
a[type.toLowerCase()]=b["scroll"+type]
}
}
return a
}
function l()
{var a=document.body,b;if(window.innerHeight)b=window.innerHeight;else if(a.parentElement.clientHeight)b=a.parentElement.clientHeight;else if(a&&a.clientHeight)b=a.clientHeight;return b}function i(a){this.parent=document.body;this.createEl(this.parent,a);this.size=Math.random()*5+15;this.el.style.width=Math.round(this.size)+"px";this.el.style.height=Math.round(this.size)+"px";this.maxLeft=document.body.offsetWidth-this.size;this.maxTop=document.body.offsetHeight- this.size;this.left=Math.random()*this.maxLeft;this.top=h().top+1;this.angle=1.4+0.2*Math.random();this.minAngle=1.4;this.maxAngle=1.6;this.angleDelta=0.01*Math.random();this.speed=2+Math.random()}var j=false;g(function(){j=true});var f=true;window.createSnow=function(a,b){if(j){var c=[],m=setInterval(function(){f&&b>c.length&&Math.random()<b*0.0025&&c.push(new i(a));!f&&!c.length&&clearInterval(m);for(var e=h().top,n=l(),d=c.length-1;d>=0;d--)if(c[d])if(c[d].top<e||c[d].top+c[d].size+1>e+n){c[d].remove(); c[d]=null;c.splice(d,1)}else{c[d].move();c[d].draw()}},40);k(window,"scroll",function(){for(var e=c.length-1;e>=0;e--)c[e].draw()})}else g(function(){createSnow(a,b)})};window.removeSnow=function(){f=false};i.prototype={createEl:function(a,b){this.el=document.createElement("img");this.el.setAttribute("src",b+"snow"+Math.floor(Math.random()*4)+".gif");this.el.style.position="absolute";this.el.style.display="block";this.el.style.zIndex="99999";this.parent.appendChild(this.el)},move:function(){if(this.angle< this.minAngle||this.angle>this.maxAngle)this.angleDelta=-this.angleDelta;this.angle+=this.angleDelta;this.left+=this.speed*Math.cos(this.angle*Math.PI);this.top-=this.speed*Math.sin(this.angle*Math.PI);if(this.left<0)this.left=this.maxLeft;else if(this.left>this.maxLeft)this.left=0},draw:function(){this.el.style.top=Math.round(this.top)+"px";this.el.style.left=Math.round(this.left)+"px"},remove:function(){this.parent.removeChild(this.el);this.parent=this.el=null}}})();