Change the activepage property of the pageframe:
Example:
thisform.pageframe1.activepage=3

>how do we programmatically force a change from page x to page y of a pageframe?
>
>I've tried ...page_y.click()
>
>
>page_x.deactivate
>page_y.activate
>
>and variations on the theme, but page_x stubbornly stays right where it is!
>
>Harry