【radiobutton】
<html>
<body>
<script language="JavaScript">
function change(){
document.form1.button1.blur();
document.form1.text1.value="Focus removed from button";
}
</script>
<form name="form1">
<input type="radio" name=button1 CHECKED>Box 1
<br>
<input type="radio" name=button2>Box 2
<br>
<input type="button" value="Remove Focus" onClick='change()'>
<br>
<input type="text" name="text1" size=15>
</form>
</body>
</html>
