語法說明： 
  • 在 var no = 10; 中修改圖案出現在畫面上的數量 
  • 在 var speed = 10; 中修改圖案游動的速度，數值越大越慢，越小越快 
  • 請自行修改圖檔連結的路徑 
  • 欲增加或減少圖案連結網址數，設定 snow[#] = "圖檔連結路徑"; 即可，其中 # 代表為數字
<!--魚兒魚兒水中游_開始-->
<script language="JavaScript">
<!--
<!--在此修改圖案出現在畫面上的數量-->
var no = 10;
<!--在此修改圖案游動的速度，數值越大越慢，越小越快-->
var speed = 10;
snow = new Array();
<!--在此修改需使用的圖案連結路徑-->
snow[0] = "圖檔連結路徑";
snow[1] = "圖檔連結路徑";
snow[2] = "圖檔連結路徑";
snow[3] = "圖檔連結路徑";
snow[4] = "圖檔連結路徑";
snow[5] = "圖檔連結路徑";
var maxsize = 100; 
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();
var j = 0;
for (i = 0; i < no; ++ i) {
 dx[i] = 0;
 xp[i] = Math.random()*(doc_height-maxsize); 
 yp[i] = Math.random()*(doc_width-maxsize);
 am[i] = Math.random()*10;        
 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\" 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) {
  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; }
} 
document.write("<div id=\"damy\" style=\"POSITION: absolute; width:1; Z-INDEX: "+ i +"; VISIBILITY: visible; TOP: 15px; LEFT: " + (doc_width+maxsize) + "px;\"> </div>");
function snowNS() {  // Netscape main animation function
 for (i = 0; i < no; ++ i) {  // iterate for every dot
  if (i%2) {
   yp[i] += sty[i];
   if (yp[i] > doc_width) {
    xp[i] = Math.random()*(doc_height-am[i]-maxsize);
    yp[i] = 0-maxsize;
    stx[i] = 0.02 + Math.random()/10;
    sty[i] = 0.7 + Math.random();
    doc_width = self.innerWidth;
    doc_height = self.innerHeight;
   }
  } else {
   yp[i] -= sty[i];
   if (yp[i] < -maxsize) {
    xp[i] = Math.random()*(doc_height-am[i]-maxsize);
    yp[i] = doc_width;
    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 = xp[i] + am[i]*Math.sin(dx[i]);
  document.layers["dot"+i].left = yp[i];
 }
 setTimeout("snowNS()", speed);
} 
function snowIE() {  // IE main animation function
 for (i = 0; i < no; ++ i) {  // iterate for every dot
  if (i%2) {
   yp[i] += sty[i];
   if (yp[i] > doc_width) {
    xp[i] = Math.random()*(doc_height-am[i]-maxsize);
    yp[i] = 0-maxsize;
    stx[i] = 0.02 + Math.random()/10;
    sty[i] = 0.7 + Math.random();
    doc_width = document.body.clientWidth;
    doc_height = document.body.clientHeight;
   }
  } else {
   yp[i] -= sty[i];
   if (yp[i] < -maxsize) {
    xp[i] = Math.random()*(doc_height-am[i]-maxsize);
    yp[i] = doc_width;
    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 = xp[i] + am[i]*Math.sin(dx[i]);
  document.all["dot"+i].style.pixelLeft = yp[i];
 }
 setTimeout("snowIE()", speed);
} 
if (ns4up) {
 snowNS();
} else if (ie4up) {
 snowIE();
} 
//-->
 </script>
<!--魚兒魚兒水中游_結束-->


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