function numSort (a, b) {
  return a - b;
}
function maxHeightContainer($container) {
  var $arrayContainer = $($container);
  var $arrayHeight = new Array();
  $($arrayContainer).each(function (i) {
    $arrayHeight.push($(this).height());
  });
  $arrayHeight.sort(numSort);
  $maxHeight = $arrayHeight.pop();
  return $maxHeight;
}

function maxWidthContainer($container) {
  var $arrayContainer = $($container);
  var $arrayWidth = new Array();
  $($arrayContainer).each(function (i) {
    $arrayWidth.push($(this).width());
  });
  $arrayWidth.sort(numSort);
  $maxWidth = $arrayWidth.pop();
  return $maxWidth;
}