Menu button only filed with other pages

Hello Would like to have a menu wich is only filed with other pages. But the other pages should not appear when I go with the cursor on the main menu button. I try to explain: www.us-sport.ch For example I take the menu button "NFL". If I press the Button "NFL", then should the pages "Test1" and "Test2" appear, but the pages "Test1" and "Test2" should not appear when I go with the Cursor to the "NFL" button. It doesn't work with parent and child pages... Thanx for any help Life on a computer is hard, if you're not a digital native :-)