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HTML DOM protocol属性


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Definition and Usage
定义与用法

The protocol property sets or returns the protocol of the link-URL in an area.
protocol属性可设置或返回area中连接的协议

Syntax
语法

areaObject.protocol=protocol


Example
举例

The following example returns the protocol of the link-URL in the "Venus" area:
返回在area"Venus"中连接的协议:

<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' protocol:
<script type="text/javascript">
x=document.getElementById('venus');
document.write(x.protocol);
</script>
</p>
</body>
</html>


演练

Get the protocol of the link-URL in an area in an image-map
得到热点地图中连接URL的协议

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