title 属性设置或返回元素的(咨询性质的)标题。
object.title=title
本例展示了两种获取 <body> 元素的 title 属性的方法:
<html> <body id="myid" title="mytitle"> <script type="text/javascript"> x=document.getElementsByTagName('body')[0]; document.write("Body title: " +x.title
); document.write("<br />"); document.write("An alternate way: "); document.write(document.getElementById('myid').title
); </script> </body> </html>
本例返回图像映射中某个区域的 title:
<html>
<body>
<img src ="planets.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>Venus' advisory title (mouse over the Venus planet):
<script type="text/javascript">
x=document.getElementById('venus')
document.write(x.title
)
</script>
</p>
</body>
</html>