/* вырезание пробелов */
if ('undefined' == typeof String.prototype.trim)
{
  String.prototype.trim = function() {
    return this.replace(/^\s+/, '').replace(/\s+$/, '');
  }
}

/* перечисление всех свойств любого объекта */
Object.prototype.properties = function()
{
	var s = "";
	for(var i in this){
		s += i + ': <font color="#006600">' + this[i] + '</font><br />';
	}

	var props_window = window.open('','props_window','top=0, left=20,scrollbars=1, menubar=0, toolbar=0, location=0, directories=0, status=1, resizable=1,width=800,height=600');
	props_window.focus();

	props_window.document.write('<small style="font-family: Tahoma; font-size: 10px;">'+s+'</small> <hr />');
}

/* обработка HTML-мнемоник */
if ('undefined' == typeof String.prototype.mnemonicToChar)
{
  String.prototype.mnemonicToChar = function()
  {
  	var str = this;
	var pat = new Array (/&lt;/,/&gt;/,/&quot;/);
	var rep = new Array ('<','>','"');
	var count = pat.length; 
	for (var i=0; i<count; i++)
	{
		while (str.search(pat[i]) != -1) str = str.replace(pat[i],rep[i]);
	}
    return str;
  }
}

function PopUp(script_name,x,y,width,height)
{
	popup = window.open(script_name,'popup','top=' + y + ', left=' + x + ',scrollbars=1, menubar=0, toolbar=0, location=0, directories=0, status=1, resizable=1,width=' + width + ',height=' + height);
	popup.focus();
}

function BrowserDetect() {
   var ua = navigator.userAgent.toLowerCase(); 
   // browser name
   this.isIE = ( (ua.indexOf('msie') != -1) && (ua.indexOf('opera') == -1) && (ua.indexOf('webtv') == -1));
   // browser version
   this.versionMinor = parseFloat(navigator.appVersion); 
   // correct version number
   if (this.isIE && this.versionMinor >= 4) {
      this.versionMinor = parseFloat(ua.substring( ua.indexOf('msie ') + 5 ));
   }
   this.versionMajor = parseInt(this.versionMinor); 
   // dom support
   this.isDOM1 = (document.getElementById);
   this.isDOM2Event = (document.addEventListener && document.removeEventListener);
   this.isIE5up = (this.isIE && this.versionMajor >= 5);
}
var browser = new BrowserDetect();

/* является ли числом */
function isNumeric(event)
{
	var keyASCII = event.which ? event.which : event.keyCode;
	
	if (isNaN(String.fromCharCode(keyASCII)) && keyASCII != 17 && keyASCII !=8) return false;
	else return true;
}

/* переход по адресу */
function moveTo(url)
{
	window.location.href = url;
}

/* предзагрузка картинок */
function preloadImg(img_src) {
	if (document.images) {
	 rslt = new Image();
	 rslt.src = img_src;
	 return rslt;
	}
}



/* Скрипт падает */
 grphcs=new Array(3);

Image0=new Image();

Image0.src=grphcs[0]="/sneg1.png";

Image1=new Image();

Image1.src=grphcs[1]="/sneg_1.gif";

Image2=new Image();

Image2.src=grphcs[2]="/sneg2.png";



      Amount=6;

Ypos=new Array();

Xpos=new Array();

Speed=new Array();

Step=new Array();

Cstep=new Array();

ns=(document.layers)?1:0;

ns6=(document.getElementById&&!document.all)?1:0;

      if (ns){

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

var P=Math.floor(Math.random()*grphcs.length);

rndPic=grphcs[P];

document.write("<LAYER NAME='sn"+i+"' LEFT=0 TOP=0><img src="+rndPic+"></LAYER>");

}

}

else{

document.write('<div style="position:absolute;top:0px;left:0px"><div style="position:relative; z-index: 1002">');

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

var P=Math.floor(Math.random()*grphcs.length);

rndPic=grphcs[P];//osw

document.write('<img id="si'+i+'" src="'+rndPic+'" style="position:absolute;top:0px;left:0px">');

}

document.write('</div></div>');

}

WinHeight=600;

WinWidth=(ns||ns6)?window.innerWidth-70:window.document.body.clientWidth;

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

      Ypos[i] = Math.round(Math.random()*WinHeight);

      Xpos[i] = Math.round(Math.random()*WinWidth);

      Speed[i]= 1.2;

      Cstep[i]=0;

      Step[i]=Math.random()*0.1+0.2;

}

function fall(){

var WinHeight=600;

var WinWidth=(ns||ns6)?window.innerWidth-70:window.document.body.clientWidth;

var hscrll=(ns||ns6)?window.pageYOffset:document.body.scrollTop;

var wscrll=(ns||ns6)?window.pageXOffset:document.body.scrollLeft;

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

sy = Speed[i]*Math.sin(90*Math.PI/180);

sx = Speed[i]*Math.cos(Cstep[i]);

Ypos[i]+=sy;

Xpos[i]+=sx;

if (Ypos[i] > WinHeight){

Ypos[i]=-60;

Xpos[i]=Math.round(Math.random()*WinWidth);

Speed[i]=1;

}

if (ns){

document.layers['sn'+i].left=Xpos[i];

document.layers['sn'+i].top=Ypos[i]+hscrll;

}

else if (ns6){

document.getElementById("si"+i).style.left=Math.min(WinWidth,Xpos[i]);

document.getElementById("si"+i).style.top=Ypos[i]+hscrll;

}

else{

eval("document.all.si"+i).style.left=Xpos[i];

eval("document.all.si"+i).style.top=Ypos[i]+hscrll;

}

Cstep[i]+=Step[i];

}

setTimeout('fall()',80);

}

      window.onload=fall