JS操作剪切板中的信息代码

在IE8下测试正常通过

<form action="">

<div id="someData">
<textarea rows="10" cols="10" name="test">
</textarea>
</div>
<input type="button" value="复制到剪切板" onclick="setClipboard()"></input>
<input type="button" value="查看剪切板内容" onclick="readClipboard()"></input>
<input type="button" value="清楚" onclick="window.clipboardData.clearData('text');"></input>


  </form>
  <script>
function readClipboard(){
alert(window.clipboardData.getData('Text'));
}
function setClipboard(){
var t = document.getElementById("someData").innerText;
alert(t);
window.clipboardData.setData('text',t);
}
  </script>