Háry János, suite from the opera for orchestra Kozjatek/Intermezzo

Of the NPR Milestones of the Millennium series of CD's I think that the Nationalism one is my least favorite. Until today I've always thought that the most annoying instrument on track 9(Háry János, suite from the opera for orchestra Kozjatek/Intermezzo) is an annoying banjo but it's actually a bangy stringed instrument like a large dulcimer. You can hear the music and see the instrument in the above clip. Anyone know what that instrument is called?