(function() {
  var $ = this
    , main$ = $('#mainContents')
    , achieves$ = main$.find('.achieveImgHolder')
    , txts$ = main$.find('.achieveTxtHolder')
    , compares$ = main$.find('.compareImg')
    , brs$ = compares$.siblings('br')
    , gifs$ = brs$.siblings('img')
    , removes = [];

  function src(elem) {
    return $(elem).find('img').attr('src');
  }

  achieves$.each(function(i, achieve) {
    var compare = compares$[i];

    if (src(achieve) === src(compare)) {
      removes.push(
        achieve, // <div class="achieveImgHolder"><img src="..."></div>
        txts$[i], // <div class="achieveTxtHolder"><h3>...</h3></div>
        compare, // <div class="compareImg"><img src="..."></div>
        brs$[i * 2], // <br clear="left">
        gifs$[i], // <img src=".../trans.gif" width="1" height="11" border="0">
        brs$[i * 2 + 1] // <br>
      );
    }
  });

  $(removes).remove();
}).call(jQuery);