Resize all selected block to same size

gistfile1.txt

(function ($) {
  $.fn.blockresize = function () {
    var height = 0;
    this.each(function () {
      c_height = parseInt($(this).height());
      if (c_height > height) {
        height = c_height;
      }
    });
    this.css('height', height);
    return this;
  }
}(jQuery));