Hide attribute row if value is null/empty/NA in magento product page

Two parts: 1) Hide attribute row if value is NA or N/A or Null or '' in magento product view page The file to be modified is /httpdocs/app/design/frontend/default/ultimento/template/catalog/product/[login to view URL] 2) in a volusion zoom / product page, items have drop down options to select from, however, we also want to be able to click on pictures below the main item image to select from the same options. So what we need is help with javascript code that will select the right option on clicking the item and set the form field value that is otherwise/normally set on selecting the drop down options so that when the form is submitted, the correct value is used by the add to cart button. in other words, ability to click on images as options, while keeping the drop down also there. Will provide an example page for javascript to the selected bidder