JavaScript Extras Options
1. GreyBox / LightBox – selects the JavaScript style.
2. Thumbnail Size – sets the thumbnail edge length (in pixels). Allowable values are anything between 32 and 256.
3. Thumbnails per Row – number of thumbnails per row in the preview window. Allowable values are anything between 1 and 10.
4. Subtitle – an extra title string can be displayed on the preview window for both JavaScript album types.