js动态增删附件

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<!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><title>附件上传</title><link href="css/css.css" rel="stylesheet" type="text/css" /><link href="css/div.css" rel="stylesheet" type="text/css" />    <style type="text/css">        a        {    color: #178DE4;        text-decoration: underline;        }        a:hover        {            color: #178DE4;            text-decoration: underline;        }        a:link{        color:#178DE4;        text-decoration:none;    </style>    <script type="text/javascript">      function addRow()      {                    var table=document.getElementById("table");        var i=table.rows.length;        var row=table.insertRow(i-1);        var cell1=row.insertCell();        cell1.setAttribute("align","left")        cell1.innerHTML="<input type='file' name='file' />  <a href='#' onclick='deleteRow(this)' style='font-size: 13px'> 删 除</a>";      }      //删除一行      function deleteRow(obj)      {        obj.parentNode.parentNode.parentNode.removeChild(obj.parentNode.parentNode);      }    </script><link href="../App_Themes/Skin1/skin.css" type="text/css" rel="stylesheet" /></head><body>    <div>        <div class="top">        </div>        <div id="header">        </div>        <div id="contain">            <div class="contain_top">                <ul>                    <li class="c">上传附件</li>                </ul>            </div>            <div class="contain_table">                <form id="form" method="post" enctype="multipart/form-data">                <table id="table" width="100%" border="0" cellpadding="0" class="nb">                    <tr>                        <td align="left" valign="top">                            <input type="file" name="file" />                                <a href="javascript:addRow()" style="font-size: 13px">添 加 </a>                        </td>                    </tr>                    <tr>                        <td align="left">                            <input type="submit" value=" 上 传 " name="submit" />                        </td>                    </tr>                </table>                </form>            </div>        </div>    </div></body></html>