Accordeon Drag n Drop

I have a start (or default) list of Items and Item Categories and I would like to have a visual way to re arrange the list in to different categories (see attachment) The default list would go into the accordion list on the left and the new list in the accordion on the right. User can choose to copy the basic list and all nodes to the new list and then edit the list, or dragging and dropping categories and items one by one. The input is an xml file so is the output. I already have a fully functional prototype using 1 tree which should help speed up this project a great deal (see attachment) ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform DHTML, XML