// presumes JQuery available . . .
function pm_trim_long_titles( ) {
  var candidate_tds = $('.main_content tbody > tr > td > a' )

  candidate_tds.each( function( idx ) {
    var this_txt = $(this).html();

    if( this_txt.length > 100 ) {
      var trimmed_txt = this_txt.substring( 0, 90 ) + "<i>[...trimmed]</i>";
      $(this).html( trimmed_txt );
    }
  });
}