The Web Assist Show If tool does not have allow for an else clause.
you would need to add a second show if behavior and set the if condition to the opposite as the first.
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.