doc.addEventListener('mousewheel', event => {
    const { target } = event;
    const scrollTop = doc.pageYOffset;
    const cont = doc.getElementById('container');

    let deltaY = 0;

    if ( 'detail'      in orgEvent ) { deltaY = orgEvent.detail * -1; }
    if ( 'wheelDelta'  in orgEvent ) { deltaY = orgEvent.wheelDelta;  }
    if ( 'wheelDeltaY' in orgEvent ) { deltaY = orgEvent.wheelDeltaY; }
    if ( 'deltaY'      in orgEvent ) { deltaY = orgEvent.deltaY * -1; }

    if ( scrollTop === (cont.scrollHeight - cont.itemsInnerHeight) && deltaY < 0 || scrollTop === 0 && deltaY > 0 ) {
      event.preventDefault();
    }
});