Well, that isn't exactly what I was talking about.
What I'm talking about is not a postback to the server. When the page first loads, it is set to display visual elements in a certain way. Users select images, which causes the image position to change through an onclick event client side. during this user selection process, there is not a postback to the server. Now, there will be a postback button that a user can click once the selection process is completed to the satisfaction of the user.
But what I'm trying to figure out is if during the selection process, before the actual postback, the user decides to reload the page, how can I prevent the newly loaded page from reading the previously loaded page's post array, and get the hidden input settings as they came from the server?