js保存文件

    <script>
    function saveFile(T,content)
    {//保存
    var filename=document.all(T).value;
    var win=window.open('','','top=10000,left=10000');
    win.document.write(document.all(content).innerText);
    win.document.execCommand('SaveAs','',filename)
    win.close();
    }
    </script>
    <form name="saveas" action="" method="post">
    文件名稱:<input type="text" id="title_1">
    <br>
    文件內(nèi)容：<textarea id="content_1">
    </text_area>
    <br>
    <input type="button" value="save as txt file" onClick=saveFile('title_1','content_1')>
    </form>