<script language="JavaScript1.2">

//Configure below to change URL path to the snow image
var snowsrc="mai.gif";
// Configure below to change number of snow to render
var no = 20;
// do rong cua hoa mai
var i_width=40;
// do rong cua hoa mai
var	i_height=40;

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 = 600;

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\"><a href=\"http://daudo.net/\"><img width='" + i_width + "' height='" + i_height + "' src='"+snowsrc+"' border=\"0\"></a></layer>");
     } else {
       document.write("<layer name=\"dot"+ i +"\" left=\"15\" top=\"15\" visibility=\"show\"><img width='" + i_width + "' height='" + i_height + "' 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;\"><a href=\"http://daudo.net\"><img width='" + i_width + "' height='" + i_height + "' 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 width='" + i_width + "' height='" + i_height + "' 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();
}

</script>

