Reset Select Menu when back button is clicked

Reset Select Menu when back button is clicked

Hi there,

My question is related to this code http://plnkr.co/edit/r7B4mck6kfRhuvjEKVrG?p=preview

After clicking on Search Database button, the db_result page is displayed. When I click on Back Home link on this page, how do I reset both the Select Menus that are on the home page.

Thank you for your time and support.

Joe