JS复制文字到剪贴板

HTML代码：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title>无标题文档</title>
    <script type="text/javascript">
    function copy_code(copyText)
    {
        if (window.clipboardData)
        {
            window.clipboardData.setData("Text", copyText)
        }
        else
        {
            var flashcopier = 'flashcopier';
            if(!document.getElementById(flashcopier))
            {
              var divholder = document.createElement('div');
              divholder.id = flashcopier;
              document.body.appendChild(divholder);
            }
            document.getElementById(flashcopier).innerHTML = '';
            var divinfo = '<embed src="_clipboard.swf" FlashVars="clipboard='+encodeURIComponent(copyText)+'" width="0" height="0" type="application/x-shockwave-flash"></embed>';
            document.getElementById(flashcopier).innerHTML = divinfo;
        }
        alert('copy成功！');
    }
    </script>
</head>

<body>
    <input id="inputTest" type="button" value="测试" onclick="copy_code('fdsdffffffff放松点士大夫士大夫是地方')" />
</body>
</html>

配套FLASH文件：点击下载