Would IE play nice if you apply a “lastRow” class to the last li elements and then style the “li.lastRow span” selector?

// goal: add classes to the last row of list items so that we can use CSS  to remove the bottom border
$(function(){
  // add the 'lastRow' class to the last
  $('#authors li:last').addClass('lastRow')
    // then check to see if the previous  has the 'even' class already present
    // before adding a lastRow class to it
    .prev().filter('.even').addClass('lastRow');
});

And then the CSS looks like:

#authors li.lastRow span {
    border-bottom: none;
}