Editing Album/Gallery Listings (section)

===AJAX handler script===
The handler script is determined by <code>section_properties.upload_uri</code>. If no value is found in that column, the code falls back on <code>section_properties.edit_uri</code>. 

That page will expect a combination of values to be passed in via the <code>id</code>, <code>pid</code>, and <code>tid</code> arguments. Only <code>tid</code> (type id) is strictly required. <code>pid</code> (parent id) can be null in cases when creating a new parent record and uploading images simultaneously. <code>id</code> (image link record id) can be null in cases when uploading a new image.