【reset_button】
<html>
<head>
<script type="text/javascript">
function formReset(){
var x=document.forms.myForm
x.reset()
}
</script>
</head>
<body>
<form name="myForm">
<p>Enter some text in the text fields and then press the "Reset form" button</p>
<input type="text" size="20"><br>
<input type="text" size="20"><br>
<br>
<input type="button" onclick="formReset()" value="Reset form">
</form>
</body>
</html>
