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host ÊôÐÔ¿ÉÉèÖûò·µ»Ø URL µÄÖ÷»úÃûºÍ¶Ë¿Ú¡£
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areaObject.host=host
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ÏÂÃæµÄÀý×Ó¿É·µ»Ø "Venus" ÇøÓòµÄÖ÷»úÃûºÍ¶Ë¿Ú£º
<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>The hostname and port for the "Venus" area are:
<script type="text/javascript">
x=document.getElementById('venus');
document.write(x.host);
</script>
</p>
</body>
</html>