I created a mega menu for my site but while testing in on an ipad, I found that it doesn't function like the one on whitehouse.gov. The whitehouse.gov menu stays open when you touch the parent menu item. My parent menu items are linked to pages and so the mega drop down doesn't stay open long enough to select a child link. When I remove the links from the parent menu items, the mega menu drop down doesn't open up. Is there another module I need to either make this menu sticky or somehow substitute hover for focus on touch devices?