Back to specific page in multipage widget[CLOSED]

Hello,
i looking for correct syntax for back to a specific tab in page contains a multipage widget.

phoneui.gotoMultiPagePage('multiPage1', 'SET_PAGE', 'page2', '_left');

someone has used this function?
edit : Solution found

// firs select my tab
phoneui.gotoMultiPagePage('m1-project-multiPage1', 'SET_PAGE', 'm1-project-namepage', 'NONE');
// wait a moment and slide to my page
setTimeout(phoneui.gotoPage( 'm1-project', phoneui.transitions.slideRight ),2000);

thanks
Yann