<html>
<head>
<title>Dom:hasFocus方法实例</title>
</head>
<body onfocus="getFocus()" onblur="Empty_Focus()">
<h2>请点击网页区域．表明该网页获得焦点,显示为true.点击浏览器地址栏．该网页失去焦点显示为false</h2>
<hr/>
<a href="http://www.jb51.net" onfocus="getFocus()">本站</a>
<span id="c"></span>
<script language="javascript">
function getFocus(){
document.getElementById("c").innerHTML = document.hasFocus();
}
function Empty_Focus(){
document.getElementById("c").innerHTML = document.hasFocus();
}
</script>
</body>
</html>