Make Tab Constant when i click 'New' BUtton?

Hi All,

I Have 2 tabs. One is ‘Posted’ and Other one is ‘Not Posted’. Assume my active tab is ‘Not Posted’ . From here if i click on ‘New’ Button the New Record will be created in ‘Not Posted’ Tab. But when i clicks on New button from ‘Not Posted’ Tab again it was going under ‘Posted’ Tab. How can i keep the new records constant under respective tabs.