背景图片随机变换

引用自
要完成此效果把如下代码加入到<head>中区域中

<script LANGUAGE="JavaScript">

bg = new Array(2);

bg[0] = 'http://www.jojoo.net/logo.gif&#39;

bg[1] = '.gif'

bg[2] = 'http://www.jojoo.net/include/1jpg&#39;

index = Math.floor(Math.random() * bg.length);

document.write("<BODY BACKGROUND=" bg[index] ">");

</script>

生成海报

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