try_dom_area_title 在线代码实例

 <img src="/upload2planets.gif" width="145" height="126" alt="Planets" usemap="#planetmap">
<map name="planetmap">
<area id="venus" shape="circle" coords="124,58,8" title="Venus" href="venus.htm">
</map>
<p>金星区域的标题 (鼠标经过金星): 
<script>
var x=document.getElementById('venus');
document.write(x.title);
</script>
</p>