jQuery.fn.jHeights = function() {
  var tallest = 0;
  if ($("#columnleft").outerHeight() > tallest) {
      tallest = $("#columnleft").outerHeight(); 
  }
  if ($("#columnright").outerHeight() > tallest) {
      tallest = $("#columnright").outerHeight(); 
  }
  $("#columnright").height(tallest);
  $("#columnleft").height(tallest);
};