You don't "jump" to a button.

From within prontoscript, to execute the actions of a button, you need to give the button a prontoscript name. If you are trying to execute it from a different page, you need to give the page it appears on a prontoscript name. And if you are trying to execute it from a different activity, you need to give the activity a prontoscript name.

Then, from your code :

CF.widget (button_name, page_name, activity_name).executeActions ();

If you are calling it from the same page, you don't need page name and activity name.

If you really meant that you want to jump to a different page from within prontoscript, you would need to create a button with an action list that performs the jump - and then reference it as above.