Ajax dynamic form

Good evening My company works with hotel reservations, and as you can imagine a very important part of the job is to fill forms with costs details. This project, to be more specific,it's about managing the extra costs (air conditioning, etc), not room rates I created a php function that will speed up the task, it analyzes an array and returns the exact cost that the customer will have to pay. The php work is done, I need someone skilled with ajax to create the form I'll use to insert those datas. It's not very simple to explain what I mean, for this reason I realized a few png screenshots (sea attached file) The task is: 1) organize in a better way `[login to view URL]`; consider a resolution of 1920x1200 2) selecting a option the script will call a php file that returns an array, which will populate another select 3) adding form dynamically (like [login to view URL] to be clear) 4) once submitted the form will have to return an array as in `[login to view URL]` Consider that this is a back office application and I'll be the only one using it; for this reason I don't care about cross-browsing, older version, sql injections, helps or hints, server side validation. Just know that javascripts will always be enabled, cookies too and I use mostly Firefox (always last version) I apologize for my English, I'm sure I miss to explain something, for this reason feel free to contact me anytime and for any reason All the best, Edoardo