js textarea 取值操作代码
<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>
复制textarea值自动复制给第二个textarea代码
<html>
<head>
<script language="JavaScript">
<!--
function setText(){
document.myForm.myTextArea2.value = document.myForm.myTextArea1.defaultValue;
}
-->
</script>
</head>
<body>
<form name="myForm">
<textarea name="myTextArea1" rows=2 cols=50 onSelect='setText()'>
Here is some text in my text area.
</textarea>
<br>
<textarea name="myTextArea2" rows=2 cols=50>
</textarea>
</form>
</body>
</html>
补充：网页制作,js教程
