     break;

                    case 'uploading':
                        $('#filePicker2').addClass('element-invisible');
                        $progress.show();
                        $upload.text('暂停上传');
                        break;

                    case 'paused':
                        $progress.show();
                        $upload.text('继续上传');
                        break;

                    case 'confirm':
                        $progress.hide();
                   