how to go to "home" inside a structure?

Hi, I have a pier application with a custom widget, who at some point performs a #call: with another component... the client does some tasks, that include, for instance, pressing other menu options, and then he came back to the menu option with the widget... The menú option is with the form: | structure | structure := self context kernel root. html anchor class: 'active' if: (self isActive: structure); goto: (self context structure: structure); with: (self labelFor: structure) I want to "reset" the component displayed (like when I call #home in plain seaside). How can I do that? Thanks, Esteban