(function(a){a.snowfall=function(c,b){function o(e,j,p,q,r){this.id=r;this.x=e;this.y=j;this.size=p;this.speed=q;this.step=0;this.stepSize=d(1,10)/100;e=a(document.createElement("div")).attr({"class":"snowfall-flakes",id:"flake-"+this.id}).css({width:this.size,height:this.size,background:b.flakeColor,position:"absolute",top:this.y,left:this.x,fontSize:0,zIndex:b.flakeIndex});if(a(c).get(0).tagName===a(document).get(0).tagName){a("body").append(e);c=a("body")}else a(c).append(e);this.element=document.getElementById("flake-"+
this.id);this.update=function(){this.y+=this.speed;this.y>k-(this.size+6)&&this.reset();this.element.style.top=this.y+"px";this.element.style.left=this.x+"px";this.step+=this.stepSize;this.x+=Math.cos(this.step);if(this.x>i-f||this.x<f)this.reset()};this.reset=function(){this.y=0;this.x=d(f,i-f);this.stepSize=d(1,10)/100;this.size=d(b.minSize*100,b.maxSize*100)/100;this.speed=d(b.minSpeed,b.maxSpeed)}}function l(){for(g=0;g<h.length;g+=1)h[g].update();m=setTimeout(function(){l()},30)}b=a.extend({flakeCount:35,
flakeColor:"#fff",flakeIndex:999999,minSize:1,maxSize:3,minSpeed:2,maxSpeed:3,round:false,shadow:false},b);var d=function(e,j){return Math.round(e+Math.random()*(j-e))};a(c).data("snowfall",this);var h=[],n=0,g=0,k=a(c).height(),i=a(c).width(),f=0,m=0;if(a(c).get(0).tagName===a(document).get(0).tagName)f=25;a(window).bind("resize",function(){k=a(c).height();i=a(c).width()});for(g=0;g<b.flakeCount;g+=1){n=h.length;h.push(new o(d(f,i-f),d(0,k),d(b.minSize*100,b.maxSize*100)/100,d(b.minSpeed,b.maxSpeed),
n))}b.round&&a(".snowfall-flakes").css({"-moz-border-radius":b.maxSize,"-webkit-border-radius":b.maxSize,"border-radius":b.maxSize});b.shadow&&a(".snowfall-flakes").css({"-moz-box-shadow":"1px 1px 1px #555","-webkit-box-shadow":"1px 1px 1px #555","box-shadow":"1px 1px 1px #555"});l();this.clear=function(){a(c).children(".snowfall-flakes").remove();h=[];clearTimeout(m)}};a.fn.snowfall=function(c){if(typeof c=="object"||c==undefined)return this.each(function(){new a.snowfall(this,c)});else if(typeof c==
"string")return this.each(function(){var b=a(this).data("snowfall");b&&b.clear()})}})(jQuery);