var elt;
elt = document.getElementById('pirtd191997');
elt.innerHTML = 'unrated';
elt = document.getElementById('pidtd191997');
elt.innerHTML = '913';
elt = document.getElementById('pirtd194022');
elt.innerHTML = 'unrated';
elt = document.getElementById('pidtd194022');
elt.innerHTML = '1959';