//Configure below to change URL path to the snow image  
var snowsrc="http://www.fischziegler.de/Page/fisch_flocke.gif"
  // Configure below to change number of snow to render  
var no = 17;
var ns4up = (document.layers) ? 1 : 0;  
// browser sniffer
  var ie4up = (document.all) ? 1 : 0; 
var ns6up = (document.getElementById&&!document.all) ? 1 : 0;
var dx, xp, yp;    // coordinate and position variables 
var am, stx, sty;  // amplitude and step variables
var i, doc_width = 1000, doc_height = 800;

if (ns4up||ns6up) 
{    
	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;                        
	// set coordinate variables    
	xp[i] = Math.random()*(doc_width-50);  
	// set position variables   
	yp[i] = Math.random()*doc_height;    
	am[i] = Math.random()*20;         
	// set amplitude variables
	stx[i] = 0.02 + Math.random()/10; 
	// set step variables    
	sty[i] = 0.7 + Math.random();     
	// set step variables 
   
	if (ns4up) 
	{                      
		// set layers      
		if (i == 0) 
		{
        
			document.write("<layer name=\"dot"+ i +"\" left=\"15\" top=\"15\" visibility=\"show\"><img src='"+snowsrc+"' border=\"0\"></a></layer>");     
		} 
		else 
		{        
				document.write("<layer name=\"dot"+ i +"\" left=\"15\" top=\"15\" visibility=\"show\"><img src='"+snowsrc+"' border=\"0\"></layer>");     
		}    
	} 
	else if (ie4up||ns6up) 
	{      
		if (i == 0) 
		{        
			document.write("<div id=\"dot"+ i +"\" style=\"POSITION: absolute; Z-INDEX: "+ i +"; VISIBILITY: visible; TOP: 15px; LEFT: 15px;\"><img src='"+snowsrc+"' border=\"0\"></a></div>");      
		} 
		else 
		{        
				document.write("<div id=\"dot"+ i +"\" style=\"POSITION: absolute; Z-INDEX: "+ i +"; VISIBILITY: visible; TOP: 15px; LEFT: 15px;\"><img src='"+snowsrc+"' border=\"0\"></div>");      
		}    
	}  
}
    
function snowNS() 
{  
	// Netscape main animation function    
	for (i = 0; i < no; ++ i) 
	{  
		// iterate for every dot      
		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()", 10);  	
}
  
function snowIE_NS6() 
{  
	// IE and NS6 main animation function    
	for (i = 0; i < no; ++ i) 
	{  
		// iterate for every dot      
		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 = ns6up?window.innerWidth : document.body.clientWidth;        
			doc_height = ns6up?window.innerHeight : document.body.clientHeight;      
		}      
		dx[i] += stx[i];      
		if (ie4up)
		{      
			document.all["dot"+i].style.pixelTop = yp[i];      
			document.all["dot"+i].style.pixelLeft = xp[i] + am[i]*Math.sin(dx[i]);      
		}      
		else if (ns6up)
		{      
			document.getElementById("dot"+i).style.top=yp[i];      
			document.getElementById("dot"+i).style.left=xp[i] + am[i]*Math.sin(dx[i]);      
		}       
	}    
	setTimeout("snowIE_NS6()", 10);  
}  
if (ns4up) 
{
    	snowNS();  
} 
else if (ie4up||ns6up) 
{    
	snowIE_NS6();  
}