(function(){
		var pics = [
			["/natale/snow0.png",49,53],
			["/natale/snow1.png",33,33],
			["/natale/snow2.png",19,19],
			["/natale/snow2.png",19,19],
			["/natale/snow2.png",19,19],
			["/natale/snow3.png",30,32]
			];
		var global = this;
		var numberOfflakes = 27;
		var windowState,flakeObjs, flakeHTML;
		var posMod, sy, sx, clientHeight, clientWidth,topPosition;
		var globalName = 'snowField'; //used for string argument only setTimeout fall-back.
		var widths = new Array(numberOfflakes),heights = new Array(numberOfflakes);
		var runCount = 0, runFor = 25 //number of seconds to run befor shutting down.
		if((document.layers)&&(this.Layer)){
			flakeHTML = [
			'<layer id=\"outFlake','',
			'\" left=\"0\" top=\"0\" width=\"','',
			'\" height=\"','',
			'\" visibility=\"hide\"><layer id=\"midFlake','',
			'\" left=\"0\" top=\"0\" width=\"','',
			'\" height=\"','',
			'\" visibility=\"hide\"><layer id=\"inFlake','',
			'\" left=\"0\" top=\"0\" width=\"','',
			'\" height=\"','',
			'\"><img src=\"','',
			'\" width=\"','',
			'\" height=\"','',
			'\" visibility=\"hide\"><\/layer><\/layer><\/layer>'];
		}else{
			flakeHTML = [
			'<div id="outFlake','', //1
			'" style="position:absolute;width:','', //3
			'px;overflow:hidden;height:','', //5
			'px;font-size:1px;visibility:hidden;\"><div id="midFlake','', //7
			'" style="position:absolute;width:','', //9
			'px;overflow:hidden;height:','', //11
			'px;font-size:1px;visibility:hidden;\"><div id="inFlake','', //13
			'" style="position:relative;width:','', //15
			'px;overflow:hidden;height:','', //17
			'px;font-size:1px;visibility:hidden;\"><img src=\"','', //19
			'\" width=\"','', //21
			'\" height=\"','', //23
			'\"><\/div><\/div><\/div>'];
		}
		for(var c = numberOfflakes;c--;){
			var picAr = pics[((Math.random()*pics.length)|0)%pics.length];
			widths[c] = (flakeHTML[21] = (flakeHTML[3] = (flakeHTML[9] = (flakeHTML[15] =   picAr[1]))));
			heights[c] = (flakeHTML[23] = (flakeHTML[5] = (flakeHTML[11] = (flakeHTML[17] =   picAr[2]))));
			flakeHTML[19] = picAr[0];
			flakeHTML[13] = flakeHTML[7] = (flakeHTML[1] = c);
			document.write(flakeHTML.join(''));
		}
		function compatModeTest(obj){
			if((document.compatMode)&&(document.compatMode.indexOf('CSS') != -1)&&(document.documentElement)){
				return document.documentElement;
			}else if(document.body){
				return document.body;
			}else{
				return obj;
			}
		}
		function getWindowState(){
			var global = this;
			var readScroll = {scrollLeft:NaN,scrollTop:NaN};
			var readSizeC = {clientWidth:NaN,clientHeight:NaN};
			var readSizeI = {innerWidth:NaN,innerHeight:NaN};
			var readScrollX = 'scrollLeft';
			var readScrollY = 'scrollTop';
			function getWidthI(){return readSizeI.innerWidth;}
			function getWidthC(){return readSizeC.clientWidth|0;}
			function getHeightI(){return readSizeI.innerHeight;}
			function getHeightC(){return readSizeC.clientHeight|0;}
			function getHeightSmart(){return retSmaller(getHeightI(), getHeightC());}
			function getWidthSmart(){return retSmaller(getWidthI(), getWidthC());}
			function setInnerWH(){
				theOne.getWidth = getWidthI;
				theOne.getHeight = getHeightI;
			}
			function retSmaller(inr, other){
				if(other > inr){
					setInnerWH();
					return inr;
				}else{
					return other;
				}
			}
			var theOne = {
				getScrollX:function(){return readScroll[readScrollX]|0;},
				getScrollY:function(){return readScroll[readScrollY]|0;},
				getWidth:getWidthC,
				getHeight:getHeightC
			};
			function main(){return theOne;}
			function rankObj(testObj){
				var dv,dhN;
				if(testObj&&(typeof testObj.clientWidth == 'number')&&(typeof testObj.clientHeight == 'number')){
					if(((dv = global.innerHeight - testObj.clientHeight) >= 0)&&((dh = global.innerWidth - testObj.clientWidth) >= 0)){
						if(dh == dv){
							return 0;
						}else if((dh&&!dv)||(dv&&!dh)){
							return (dh+dv);
						}
					}
				}
				return NaN;
			}
			if((typeof global.innerHeight == 'number')&&(typeof global.innerWidth == 'number')){
				readSizeI = global;
				var bodyRank = rankObj(document.body);
				var rankDocEl = rankObj(document.documentElement);
				var selEl = null;
				if(!isNaN(bodyRank)){
					if(!isNaN(rankDocEl)){
						if(bodyRank < rankDocEl){
							selEl = document.body;
						}else if(bodyRank > rankDocEl){
							selEl = document.documentElement;
						}else{
							selEl = compatModeTest(document.body);
						}
					}else{
						selEl = document.body;
					}
				}else if(!isNaN(rankDocEl)){
					selEl = document.documentElement;
				}
				if(selEl){
					readSizeC = selEl
					theOne.getWidth = getWidthSmart;
					theOne.getHeight = getHeightSmart;
				}else{
					setInnerWH();
				}
			}else{
				readSizeC = compatModeTest(readSizeC);
			}
			if((typeof global.pageYOffset == 'number')&&(typeof global.pageXOffset == 'number')){
				readScroll = global;
				readScrollY = 'pageYOffset';
				readScrollX = 'pageXOffset';
			}else{
				readScroll = compatModeTest(readScroll);
			}
			return (getWindowState = main)();
		}
		function readWindow(){
			clientHeight = windowState.getHeight() - 2;
			clientWidth = windowState.getWidth() - 2;
			sy = windowState.getScrollY() + 1;
			sx = windowState.getScrollX() + 1;
		}
		function getStyleObj(id, outer){
			var obj = null;
			if(document.getElementById){
				obj = document.getElementById(id);
			}else if(document.all){
				obj = document.all[id];
			}else if(document.layers){
				obj = document.layers[id];
				if((!obj)&&(outer)&&
				  (outer.document)&&
				  (outer.document.layers)){
					obj = outer.document.layers[id];
				}
			}
			return (obj && obj.style) || obj;
		}
		var cosAr = [];
		var angleStep = Math.PI/90;
		for(var c = 0;c <= 180;c++){
			cosAr[c] = Math.cos(c*angleStep)
		}
		function FlakeObj(id, parent){
			var next;
			var outerDivClip, outerDiv = getStyleObj("outFlake"+id);
			var midDivClip, midDiv = getStyleObj("midFlake"+id, outerDiv);
			var innerDivClip, innerDiv = getStyleObj("inFlake"+id, midDiv);
			var y = 0,x = 0,cx,cy,s1,s2;
			var w = widths[id],h = heights[id],returnObj = this;
			topPosition = clientHeight;
			function setPos(){
				var temp, ouTop = 0,ouLeft = 0,ouW = 0,ouH = 0,inTop = 0,inLeft = 0;
				var xPlusW = x + w;
				var yPlusH = y + h;
				if((xPlusW >= 0)&&(yPlusH >= 0)&&(x < clientWidth)&&(y < clientHeight)){
					if(y >= 0){
						ouTop = (y < clientHeight)?y:0;
						ouH = ((yPlusH) >= clientHeight)?(clientHeight - y):h;
					}else{
						inTop = y;
						ouH = yPlusH;
					}
					if(x >= 0){
						ouLeft = (x < clientWidth)?x:0;
						ouW = ((xPlusW) >= clientWidth)?(clientWidth - x):w;
					}else{
						inLeft = x;
						ouW = xPlusW;
					}
					outerDiv.visibility = 'visible';
				}else{
					outerDiv.visibility = 'hidden';
				}
				outerDivClip.width = (outerDiv.pixelWidth = ouW)+posMod;

				//innerDiv.left = inLeft+posMod;
				midDiv.left = inLeft+posMod;

				outerDivClip.height = (outerDiv.pixelHeight = ouH)+posMod;

				//innerDiv.top = inTop+posMod;
				midDiv.top = inTop+posMod;

				midDivClip.width =  (midDiv.pixelWidth = ((-1*inLeft) + (temp = (ouW-inLeft))))+posMod;

				innerDivClip.width =  (innerDiv.pixelWidth = temp)+posMod;

				outerDiv.left = (sx+ouLeft)+posMod;

				midDivClip.height =  (midDiv.pixelHeight = ((-1*inTop) + (temp = (ouH-inTop))))+posMod;

				innerDivClip.height =  (innerDiv.pixelHeight = temp)+posMod;

				outerDiv.top = (sy+ouTop)+posMod;
			}
			if((outerDiv)&&(innerDiv)){
				(this.reset = function(){
					if(runCount > runFor)returnObj = next;
					y = -(((Math.random()*topPosition)+h)|0);
					x = w+((Math.random()*(clientWidth-(w<<1)))|0);
					cx = Math.random()*3;
					cy = (7 - cx)|0; //rate of fall
					cx = (cx + 3)|0; //sideways drift
					s1 = (Math.random()*180)|0;
					s2 = 1+((Math.random()*4)|0);
					return;
				})();
				outerDivClip =  (outerDiv && (typeof outerDiv.clip != 'string') && outerDiv.clip)||outerDiv;
				midDivClip =  (midDiv && (typeof midDiv.clip != 'string') && midDiv.clip)||midDiv;
				innerDivClip =  (innerDiv && (typeof innerDiv.clip != 'string') && innerDiv.clip)||innerDiv;
				this.position = function(){
					y += cy;
					x += (cx * cosAr[(s1 = ((s1 + s2)%180))])|0;
					if(y >= clientHeight){
						this.reset();
					}
					setPos();
					next = next.position();
					return returnObj;
				};
				setPos();
				innerDiv.visibility = (outerDiv.visibility = 'visible');
			}else{
				this.position = function(){return;};
			}
			this.toString = function(){
				return 'cd '+id+' x = '+x+' y = '+y+' cx = '+cx+' s2 = '+s2+' s1 = '+s1+'\n'+next.toString();
			}
			if(++id < numberOfflakes){
				next = new FlakeObj(id, parent)
			}else{
				topPosition = (clientHeight>>3);
				next = parent
			}
		}
		function init(){
			var stRef;
			if(!(stRef = getStyleObj("outFlake"+(numberOfflakes-1)))){
				setTimeout(init, 200);
			}else{
				windowState = getWindowState();
				posMod = (typeof stRef.top == 'string')?'px':0;
				readWindow();
				flakeObjs = new FlakeObj(0, init);
				runFor *= 1000;
				init.act();
			}
		};
		
		init.position = function(){return this;}
		init.act = function(){
			readWindow();
			flakeObjs = flakeObjs.position();
			if(flakeObjs != init)setTimeout(init.act,60);
			runCount += 60;
		};
		init.act.toString = function(){return globalName+'.act()';};
		init.toString = function(){
			while((global[globalName])&&(global[globalName] != this)){globalName += globalName};
			global[globalName] = this; //this - is the init function.
			return globalName+'()';
		};
		setTimeout(init, 200);
	})();