<!-- Begin
 var no = 5; // number of Ufo
 var speed = 3; // speed of Ufo
 var snowflake = "images/ufo.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 = 1000, doc_height = 1000;
 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 -->
