I have a long running query that is kicked off by clicking a submit button on a page. When the server gets the request it may take 10-30 sec. to generate the request. I would like to have the user see a page that says I am working on there query and to please wait. When I am done generating the output I then send them/give them the result.

Okay now here is the kicker. If I hit the back button I want to go back to the original start page and not a waiting/processing page.

Thanks
Jim