var no = 15; // колличество снежинок 
var speed =25; // скорость снежинок 
var snowflake = "snow/sneg.gif"; 
 
var ns4up = (document.layers) ? 1 : 0; 
var ie4up = (document.all) ? 1 : 0; 
var dx, xp, yp;  
var am, stx, sty;  
var i, doc_width = 800, doc_height = 600; 
 
if (ns4up) 
 { 
  doc_width = self.innerWidth; 
  doc_height = self.innerHeight; 
 } 
else if (ie4up) 
 { 
  doc_width = document.body.clientWidth; 
  doc_height = document.body.clientHeight; 
 } 
 
dx = new Array(); 
xp = new Array(); 
yp = new Array(); 
am = new Array(); 
stx = new Array(); 
sty = new Array(); 
 
for (i = 0; i < no; ++ i) 
 {   
  dx[i] = 0;          
  xp[i] = Math.random()*(doc_width-50);  
  yp[i] = Math.random()*doc_height; 
  am[i] = Math.random()*20;          
  stx[i] = 0.02 + Math.random()/10;  
  sty[i] = 0.7 + Math.random();    
  if (ns4up) 
   {                   
    if (i == 0) 
     { 
      document.write("<layer name=\"dot"+ i +"\" left=\"15\" "); 
      document.write("top=\"15\" visibility=\"show\"><img src=\""); 
      document.write(snowflake + "\" border=\"0\"></layer>"); 
     } 
    else 
     { 
      document.write("<layer name=\"dot"+ i +"\" left=\"15\" "); 
      document.write("top=\"15\" visibility=\"show\"><img src=\""); 
      document.write(snowflake + "\" border=\"0\"></layer>"); 
     } 
   } 
  else if (ie4up) 
   { 
    if (i == 0) 
     { 
      document.write("<div id=\"dot"+ i +"\" style=\"POSITION: "); 
      document.write("absolute; Z-INDEX: "+ i +"; VISIBILITY: "); 
      document.write("visible; TOP: 15px; LEFT: 15px;\"><img src=\""); 
      document.write(snowflake + "\" border=\"0\"></div>"); 
     } 
    else 
     { 
      document.write("<div id=\"dot"+ i +"\" style=\"POSITION: "); 
      document.write("absolute; Z-INDEX: "+ i +"; VISIBILITY: "); 
      document.write("visible; TOP: 15px; LEFT: 15px;\"><img src=\""); 
      document.write(snowflake + "\" border=\"0\"></div>"); 
     } 
   } 
 } 
 
function snowNS() 
 {  
  for (i = 0; i < no; ++ i) 
   {   
    yp[i] += sty[i]; 
    if (yp[i] > doc_height-50) 
     { 
      xp[i] = Math.random()*(doc_width-am[i]-30); 
      yp[i] = 0; 
      stx[i] = 0.02 + Math.random()/10; 
      sty[i] = 0.7 + Math.random(); 
      doc_width = self.innerWidth; 
      doc_height = self.innerHeight; 
     } 
    dx[i] += stx[i]; 
    document.layers["dot"+i].top = yp[i]; 
    document.layers["dot"+i].left = xp[i] + am[i]*Math.sin(dx[i]); 
   } 
  setTimeout("snowNS()", speed); 
 } 
 
function snowIE() 
 {  
  for (i = 0; i < no; ++ i) 
   {  
    yp[i] += sty[i]; 
    if (yp[i] > doc_height-50) 
     { 
      xp[i] = Math.random()*(doc_width-am[i]-30); 
      yp[i] = 0; 
      stx[i] = 0.02 + Math.random()/10; 
      sty[i] = 0.7 + Math.random(); 
      doc_width = document.body.clientWidth; 
      doc_height = document.body.clientHeight; 
     } 
    dx[i] += stx[i]; 
    document.all["dot"+i].style.pixelTop = yp[i]; 
    document.all["dot"+i].style.pixelLeft = xp[i] + am[i]*Math.sin(dx[i]); 
   } 
  setTimeout("snowIE()", speed); 
 } 
 
if (ns4up) 
 { 
  snowNS(); 
 } 
else if (ie4up) 
 { 
  snowIE(); 
 } 
 
// End -->