show form data for later submission

[searls03]

OK, so I am currently working on building an ONLINE POS system.  This POS has buttons with each item in them.  What I would like to do is have each of the buttons in their own form, and each button is a submit.  but what I would like is for the submitted items to be stored, but displayed onscreen with a delete option, for later submission into database.  so currently they are being stored client side, but later will be submitted server-side.  so I could click on t-shirt and it would show in a checkout area "t-shirt" with a delete option by it, so if I have to delete it, it won't be submitted to database.  but when I click the button that says checkout, all the items in the shopping cart area(the display area) will then be submitted to the database.  Currently I have it so that they are submitted first, then a div refreshes to show after they were put into the database, I do not want this, cause it can be very slow at responding at times, or refresh before it was submitted.  any help is greatly appreciated. I don't really have anywhere to start, so if someone could help me with that, that would be what is best!