Sort filelists in PingPong

pingpong_sort_up.js

if(!window.jQuery){
  var scr = document.createElement('script');
  scr.src = 'https://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js';
  document.getElementsByTagName('head')[0].appendChild(scr);
}
var jwait = setInterval(function(){
  if(!window.jQuery){return;}
  clearInterval(jwait);
  var $ = jQuery;
  var table = $('#ppfdata').contents().find('.file-archive-table');
  var sorted = [];
  var first = true;
  table.find('tr').each(function(i){
    if(first){first = false; return;}
    var me = $(this);
    var date = me.find('td').last().text();
    sorted.push({date:date,htmlEl:me});
  });
  sorted.sort(function(x,y){
    return x.date < y.date ? 1 : -1;
  });
  var oddEven = "even";
  sorted.forEach(function(item){
    item.htmlEl.removeClass('odd').removeClass('even').addClass(oddEven);
    oddEven = oddEven == "even" ? "odd" : "even";
    table.append(item.htmlEl);
  });
},100);