Javascript integartion projet

I have a website for running a survey. The site has about 5 pagfes. On each of these pages users must enter some information that need to be sent to the backend server using AJAX. Here is the task: 1) Add some validation when the user clicks to move to the next page 2) Integrate with backend by calling the necessary REST URL and passing the user supplied information. 3) Most of these requests need to be called asynchronously/AJAX using HTTPRequest 4) One of the pages is about displaying album images. Paganiation needs to be introduced to this page to be able to support a greater set of albums. ideally i want rolling pagination the would see on tablets. The server is completely ready and easy to use. I can provide support on the server side.