当鼠标滑过超链接出现提示框效果实例

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<title>无标题文档</title>
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function enableTooltips(id){
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AddCss();
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if(id==null) links=document.getElementsByTagName("a");
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for(i=0;i30) l=l.substr(0,27)+"...";
b.appendChild(document.createTextNode(l));
tooltip.appendChild(b);
setOpacity(tooltip);
el.tooltip=tooltip;
el.onmouseover=showTooltip;
el.onmouseout=hideTooltip;
el.onmousemove=Locate;
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Locate(e);
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l.setAttribute("rel","stylesheet");
l.setAttribute("href","?.css");
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<script type="text/javascript">
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<style type="text/css">
body{font: 76%/1.5 Arial,sans-serif;background: #FFF;color: #333}
div#container{width: 500px;margin:0 auto}
h1{color: #3CA3FF;margin: 1em 0 0;letter-spacing: -2px}
p{margin: 0 0 1.7em}
a{color: #F60;font-weight:bold}
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     background: url(http://www.gxlcms.com/images/uppic/200708171844190.gif) no-repeat bottom}
</style>
</head>
<body>
<div id="container">
<p>My space</p>
</div>
</body>
</html>

[Ctrl+A 全选注:如需引入外部Js需刷新才能执行]

当鼠标滑过超链接出现提示框效果实例_javascript技巧