How to store 4 to 5 pages data and finally submit to server

Hi folks,

I am just try to create online shopping application kind of thing. My process will be like who want to sell their product the have two enter every information about it and finally it has to go to server side. First Page they can type Name and Description,In Second may be they can add pictures and it goes. At last they will verify all the details and they can submit to server. Problem is I am not getting any idea how we can track the data upto 4 to 5 pages. I think localstorage won`t work here. Since If they stop in middle app should warn them how many steps are remaining and list of pending also.

If somebody did similar kind of process please share idea to me.