uploadify

<div id="uploader">
  <p><input type="file" name="file_upload" id="file_upload" /></p>
  <a href="javascript:$('#file_upload').uploadify('upload','*')">上传</a> 
        <a href="javascript:$('#file_upload').uploadify('stop')">取消上传</a>
        <div id="uploader_queue"></div>
        <div id="uploader_msg"></div>
  <div id="uploader_view"></div>
 </div>