有人知道如何通过ajax发送这个吗?

这是pandastream的pandauploader。但我希望通过AJAX发送。有人知道我会怎么改变吗?

:javascript
  $("#returned_video_id").pandaUploader(#{Panda.signed_params('post', "/videos.json", :profiles => 'f1eb0fe2406d3fa3530eb7324f410789').to_json}, {
    onsuccess: function(){
      $(".opened_photo").fadeTo(200, 0, function() {
        $(".opened_photo").hide();
        $(".media_lib").fadeIn();
      });
    },
    upload_progress_id: "upload_progress",
    allowed_extensions: ['AAC', 'AVI', '3GP', 'FLV', 'MOV', 'MP3', 'MP4', 'MPEG', 'OGG', 'WAV', 'WEBM', 'WMA', 'WMV',
      'aac', 'avi', '3gp', 'flv', 'mov', 'mp3', 'mp4', 'mpeg', 'ogg', 'wav', 'webm', 'wma', 'wmv']
  });