I am working on a phone at the moment so cant say off the top of my head. weak i know! I need to look at the files. i guess it is in additional_images.php where it ceates the <a> tags.

there is no sql. the zoom factor is just determined by the size of the large image.

having said that there are some jq settings that are initialised in the javascript.

jqzoom also does the image swapping which is one of the reasons i like the script