Opera 12.x UserJS pre forum.altap.cz

/* version 1.0.0 - September 17, 2013 by AD7 */

const DAYs = 7; /* pocet dni dozadu, ktore zvyraznit  */

/*
String.prototype.trim = function() {
  return this.replace(/^\s+|\s+$/g, "");
};
*/

window.addEventListener(
  'load',
  function forumAltap() {
    var l = location.href;
    if( l.indexOf("http://forum.altap.cz/") != -1 ) {
      var n = document.getElementsByTagName("dd");
      var cnt = n.length;
      //alert(cnt);

      n = document.querySelectorAll(".lastpost");
      cnt = n.length;
      //alert(cnt);
      var I = 1;
      while(I<cnt) {
        var s = n[I].innerHTML;
        //alert(s);

        var ch = n[I].childNodes;
        var sp = n[I].getElementsByTagName('span');
        //alert( sp.length );
        //alert( sp[0].innerHTML );

        var r = '<br>';
        var nr = r.length;
        s = sp[0].innerHTML;
        var i1 = s.indexOf(r) + nr + 4;
        var dt = s.substr ( i1 ); //4...name of day (preskocime)
        var dt2 = dt;
        dt = dt.substr(0, dt.length-5).trim();
        var tm = s.substr (-5).trim();
        //alert(dt+ ' --- '+tm);

        var dat = new Date(dt2);
        var ter = new Date();
        var timeDiff = Math.abs(ter.getTime() - dat.getTime());
        var diffMin = Math.ceil(timeDiff / (1000 * 60)); //rozdiel casov [min]

        //alert('Datum: '+dat+', diff je: '+diffMin+' '+timeDiff);
        if(diffMin < 60*24 * 1) { //dnesne
          var s2 = s.substr(0, i1) + "<span style='border:1px solid #00a000;background-color:rgba(64,255,64,.33);padding:2px;border-radius:4px;display:inline;'>" + dt + ' ' + tm + "</span>";
          sp[0].innerHTML = s2;
        } else
          if(diffMin < 60*24 * DAYs) { //1440min * Num of Days
            var s2 = s.substr(0, i1) + "<span style='border:1px solid #FFFF18;background-color:rgba(255,255,128,.33);padding:2px;border-radius:4px;display:inline;'>" + dt + ' ' + tm + "</span>";
            sp[0].innerHTML = s2;
          }
        I++;
      }
    }
  },
  false
);