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<title>網頁特效|Linkweb.cn/Js|---隨機的背景圖案</title>
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<style type="text/css">BODY {
FONT-FAMILY: "宋體"; FONT-SIZE: 9pt
}
A {
COLOR: #000000; FONT-FAMILY: "宋體"; FONT-SIZE: 9pt; TEXT-DECORATION: none
}
A:hover {
COLOR: red; FONT-FAMILY: "宋體"; FONT-SIZE: 9pt; TEXT-DECORATION: underline
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A:visited {
COLOR: darkblue; FONT-FAMILY: "宋體"; FONT-SIZE: 9pt
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A:active {
COLOR: cyan; FONT-FAMILY: "宋體"; FONT-SIZE: 9pt; FONT-STYLE: normal; FONT-WEIGHT: bold; TEXT-DECORATION: underline
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TD {
COLOR: #000000; FONT-FAMILY: "宋體"; FONT-SIZE: 9pt; TEXT-DECORATION: none
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BR {
FONT-FAMILY: "宋體"; FONT-SIZE: 9pt
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<script language="JavaScript">
bg = new Array(5);
bg[0] = 'images/a.jpg'
bg[1] = 'images/b.jpg'
bg[2] = 'images/c.jpg'
bg[3] = 'images/d.jpg'
bg[4] = 'images/e.jpg'
index = Math.floor(Math.random() * bg.length);
document.write("<BODY BACKGROUND="+bg[index]+">");</script>
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<body>
<div align="center">
<center>
<table border="0" width="100%">
<tr>
<td width="41%"> </td>
<td width="59%"> <font size="6" color="#0000FF">背景隨機顯示</font><br>
<font size="3">試著單擊瀏覽器工具欄“刷新”按鈕，是不是每次刷新后的頁面背景都不一樣，很有趣吧。其實現方法其實很簡單，注意下面的代碼：</font></td>
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<tr>
<td width="41%"></td>
<td width="59%"></td>
</tr>
</table>
</center>
</div>
<p align="center"><br>
</p>
<p align="center"> </p>
<div align="center"><center>
<table border="0" cellPadding="0" cellSpacing="0" width="80%">
<TBODY>
<tr>
<td width="100%">將如下代碼加入HTML的<HEAD>區：<br>
<br>
<script LANGUAGE="JavaScript"><br>
bg = new Array(<font color="#ff0000">2</font>); //設定圖片數量，如果圖片數為3，這個參數就設為2，依次類推<br>
bg[0] = '<font color="#ff0000">bg1.gif</font>' //顯示的圖片路徑，可用http://<br>
bg[1] = '<font color="#ff0000">bg2.gif</font>'<br>
bg[2] = '<font color="#ff0000">bg3.gif</font>'<br>
index = Math.floor(Math.random() * bg.length);<br>
document.write("<BODY BACKGROUND="+bg[index]+">");<br>
</script></td>
</tr>
</TBODY>
</table>
</center></div>
</body>
</html>