alt 屬性可設(shè)置或返回在瀏覽器不支持重置按鈕時(shí)顯示的替代文本。
resetObject.alt=alternate_text
下面的例子可返回重置按鈕的 alt 文本:
<html>
<body>
<form>
<input type="reset" alt="Reset button" id="reset1" />
</form>
<p>The alt text for the reset button is:
<script type="text/javascript">
x=document.getElementById('reset1');
document.write(x.alt
);
</script></p>
</body>
</html>
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