js超漂亮的鼠标提示，带人性化缺口

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<html xmlns="http://www.w3.org/1999/xhtml"> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> 
<title>鼠标提示符</title> 
<style> 
* { padding: 0; margin: 0; } 
li { } 
body { background: #fdf7f7; }

#explain { height: 60px; border-bottom: 1px solid #999999; background: #eee; font-size: 14px; color: #666; text-align: center; line-height: 60px; } 
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#explain a:hover { border-bottom: 2px solid #990000; } 
#explain strong { color: #990000; } 
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img { float: left; } 
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#topic .adorn { width: 7px; height: 11px; overflow: hidden; background: url(/upload/201011/20101103150729602.gif); position: absolute; bottom: 15px; left: -7px; } 
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#topic .inner_html a:hover { border-bottom: 2px solid #990000; } 
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setPosition(oEvent.clientX, oEvent.clientY); 
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clearTimeout(g_oTimerHide); 
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oTopic.getElementsByTagName('div')[1].innerHTML=g_aData[index]; 
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setPosition(oEvent.clientX, oEvent.clientY); 
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l=x-(oTopic.offsetWidth+20); 
oTopic.getElementsByTagName('div')[0].className='adorn_r'; 
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oTopic.getElementsByTagName('div')[0].className='adorn'; 
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oTopic.style.left=l+'px'; 
oTopic.style.top=t+'px'; 
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</script> 
</head>

<body> 
<div id="explain">可以调整窗口大小，再把鼠标移到图片上查看……</div> 
<div id="topic" style="display: none; z-index:2"> 
<div class="adorn"></div> 
<div class="inner_html"></div> 
</div>

[Ctrl+A 全选注:如需引入外部Js需刷新才能执行]

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