【textarea】
<html>
<head>
<script language="JavaScript">
function resetText(){
document.myForm.myTextArea.value = document.myForm.myTextArea.defaultValue;
}
</script>
</head>
<body>
<form name="myForm">
<textarea name="myTextArea" rows=6 cols=50>
Here is some text in my text area.
</textarea>
<input type=BUTTON value="Reset" name="myButton" onClick='resetText()'>
</form>
</body>
</html>
