HTML DOM id属性

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出处:互联网 整理: 软晨网（RuanChen.com） 发布: 2009-03-04 浏览: 437 ::

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Definition and Usage
定义与用法

The id property sets or returns the id of an area in an image-map.
id属性可设置或返回热点图中area的id

areaObject.id=id

The following example returns the id of the "Venus" area in the image-map:
下面的举例将返回热点图中"Venus"区域的id:

<html>
<body>

<img src="planets.gif"
width="145" height="126"
usemap="#planetmap" />

<map name="planetmap">
<area id="venus" shape="circle"
coords="124,58,8"
alt="Venus"
href="venus.htm" />
</map>

<p>"Venus" area id =
<script type="text/javascript">
x=document.getElementById('venus');
document.write(x.id);
</script>
</p>

</body>
</html>