Ajax based gallerie systeme

We have a custom administration system that needs a new feature. This is how it works when you create a new page: 1. Create fields (Ex: Title, photo, wysiwyg) 2. Group the fields into a template 3. Create a page using a template What we would like is a new field type called Gallery. When you create a new field, there's a value input. We would like to use it in order to add some BBCode to create some extra fields like image title, image description. The BBCode would look like this [gal="1,4,7"]. The numbers would refer to other field ID's already created by the systeme. When selected in a template, it would add in the page creation form an Ajax based gallery system where you can upload photos from your HD, order them and delete the images with out any page reload using Ajax. You would also have for each images the extra fields (if any) that has been selected in the BBCode. The Image file name, page id and image order would then be saved into the database when the page is submitted. In order to order the images, we would like the jQuery UI drag and drop library (already loaded and working in the administration system) [login to view URL] A walk in the code and a very detailed explanation on what is where will be provided so the chosen freelancer does not loose time finding his way and how it works.