Zip code Entry disappears when mouse leaves hover

We are having an issue that just developed recently. When you plugin a zipcode into the zipcode search field, it disappears and resets as soon as you leave the hover state. In order to use the zipcode function you need to enter the zip code, keep the mouse as is, hit he enter button on your keyboard and it will trigger a search. Otherwise it does not work.

The page I need help with: [log in to see the link]