Django File Upload Utility

I need to add two features to an existing django project. There is a many to many filefield in one of the model, i need to implement it with ajax uploader with progress bar. And i need to add dynamically field for many to many relation in the front end. It is urgent. You need to complete it withing 5 hours. If you are expert in Jquery, Html and django than it will take at most one hour.