javascript案例 - W3xue在线HTML/CSS/JS运行工具

​x
 
<html>
<head>
<script type="text/javascript">
function setFocus()
  {
  document.getElementById('male').focus()
  }
function loseFocus()
  {
  document.getElementById('male').blur()
  }
</script>
</head>
<body>
​
<form>
Male: <input id="male" type="radio" name="Sex" value="Male" />
<br />
Female: <input id="female" type="radio" name="Sex" value="Female" />
<br />
<input type="button" onclick="setFocus()" value="Set focus" />
<input type="button" onclick="loseFocus()" value="Lose focus" />
</form>
​
</body>
</html>
​