function showCover( issueNum, l, r )
  {
    window.open( '/showCover.phtml?i=' + issueNum + '&l=' + l + '&r=' + r, 'TOTU_Cover',
      'width=795,height=550,screenY=50,screenX=50,directories=no,personalbar=no,location=no,menubar=yes,resizable=yes,scrollbars=yes,status=no' );
  }