<img src="/img/eg_planets.jpg"
border="0" usemap="#planetmap"
<map name="planetmap" id="planetmap">
<area id="sun" shape="rect" coords="0,0,110,260"
href ="/example/html/sun.html" target ="_blank"
<p>太阳的咨询性标题是(请把鼠标移动到太阳上):
var x=document.getElementById('sun');