代码提示：将下面代码复制到body区varuserAgent=navigator.userAgent.toLowerCase();varis_opera=userAgent.indexOf('opera')!=-1&&opera.version();varis_saf=userAgent.indexOf('applewebkit')!=-1||navigator.ven…

<SCRIPT language="JavaScript"> <!-- Begin function movepic(img_name,img_src) { document[img_name].src=img_src; } // End --> </SCRIPT> <A HREF="http://www.v404.cn" onmouseover="movepic('button','http://www.baidu.com/img/baidu_logo.gif')" onmouseout="movepic('button','http://www.google.cn/intl/zh-CN/images/logo_cn.gif')"> <IMG NAME="button" SRC="http://www.google.cn/intl/zh-CN/images/logo_cn.gif" ALT="551zy" border="0"></A>
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