var no = 13; // image number or falling rate
var speed = 0; // the lower the number the faster the image moves
var snow = new Array();
snow[0] = "./scripts/images/1.jpg"
snow[1] = "./scripts/images/2.jpg"
snow[2] = "./scripts/images/3.jpg"
snow[3] = "./scripts/images/4.jpg"
snow[4] = "./scripts/images/5.jpg"
snow[5] = "./scripts/images/6.jpg"
snow[6] = "./scripts/images/starrosa.gif"
snow[7] = "./scripts/images/8.jpg"
snow[8] = "./scripts/images/9.jpg"
snow[9] = "./scripts/images/starazul.gif"
snow[10] = "./scripts/images/11.jpg"
snow[11] = "./scripts/images/12.jpg"
snow[12] = "./scripts/images/starazul2.gif"
snow[13] = "./scripts/images/starrosa.gif"





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 = 800, doc_height = 1800;


dx = new Array();
xp = new Array();
yp = new Array();
am = new Array();
stx = new Array();
sty = new Array();
var j = 0;



for (i = 0; i < no; ++ i) 
{
        dx[i] = 0;                        // set coordinate variables
        xp[i] = Math.random()*(doc_width);  // set position variables
        yp[i] = Math.random()*doc_height;
        am[i] = Math.random()*20;         // set amplitude variables
        stx[i] = 0; // 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=\""+ snow[j] + "\" border=\"0\"></layer>");
				else 
				   document.write("<layer name=\"dot"+ i +"\" left=\"15\" top=\"15\" visibility=\"show\"><img src=\""+ snow[j] + "\" 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; width:1;\"><img src=\"" + snow[j] + "\" border=\"0\"></div>");
          else
		  	document.write("<div id=\"dot"+ i +"\" style=\"POSITION: absolute; Z-INDEX: "+ i +"VISIBILITY: visible; TOP: 15px; LEFT: 15px; width:1;\"><img src=\"" + snow[j] + "\" border=\"0\"></div>");
         }
        if (j == (snow.length-1)) { j = 0; } else { j += 1; }
}










function snowNS() 
{  // Netscape main animation function
        for (i = 0; i < no; ++ i) 
		{  // iterate for every dot
                yp[i] -= sty[i];   
				if (yp[i] < -50) 
				{
					xp[i] = Math.random()*(doc_width-am[i]-30);
					yp[i] = doc_height;
					stx[i] = 0;
					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_NS6() 
{  // IE main animation function
      for (i = 0; i < no; ++ i) 
	  {  // iterate for every dot
              yp[i] -= sty[i];
              if (yp[i] < -50) 
			  {
	                xp[i] = Math.random()*(doc_width-am[i]-30);
	                yp[i] = doc_height;
	                stx[i] = 0;
	                sty[i] = 0.7 + Math.random();
	                doc_width = ns6up?window.innerWidth-5:document.body.clientWidth;
	                doc_height = ns6up?window.innerHeight-5: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()", speed);
}





 
if (ns4up||ns6up) 
{
        doc_width = self.innerWidth;
        doc_height = self.innerHeight;
} 
else if (ie4up) 
{
        doc_width = document.body.clientWidth;
        doc_height = document.body.clientHeight;
}



if (ns4up) snowNS();
else if (ie4up||ns6up) snowIE_NS6();