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$(function() {
  $("h5").hide();

  var i = 1990;
  while (i < 2020) {
      //console.log(i);
      var hx = $("h5:contains('" + i + "')").get();
      //console.log(hx);
        var zx = $("h5:contains('" + i + " — Session Two')").get();
      $(hx).first().show();
      $(zx).first().show();
    i++;
  }
});