converter.thumbnailResolution Property HTML5/Flash Uploader JavaScript

$au.imageUploaderFlash({
    converters : [
        {
            //...other params...
            thumbnailResolution: 0,
            //...other params...
        }
    ]
})

$au.imageUploaderFlash('uploaderID').converters().set(index).thumbnailResolution(value);
value = $au.imageUploaderFlash('uploaderID').converters().get(index).thumbnailResolution();