blur() 方法用于从单选按钮上移开焦点。
radioObject.blur()
下面的例子可设置或移开单选按钮上的焦点:
<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>
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