You would use two update record server behaviors and two recordsets. Make sure that the first update record behavior does not redirect to another page. only redirect in the second update record behavior.
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.