ions = function(htmlCollection, expectedColection){
  for(var i=0;i<htmlCollection.length;i++){
    var option = htmlCollection[i].value;
    if(expectedColection.indexOf(option) === -1) return false;
  }
  return true;
}

var createScrollList = function(div){
  var ITEMS = core.randf(0,1) < 0.5 ? ui_utils.PEOPLE_NAMES : ui_utils.COUNTRIES;
  ITEMS = ITEMS.slice();
  core.shuffle(ITEMS);

  var sel = div.append('select').attr('id', 'options').attr('style', 'width:150px;').attr('multiple', '');
  var n = cor