Set columns to same height on one row. All columns will be height of tallest column.

Columns Same Height.js

var i = 0;
var maxHeight = 0;
for (var li = $("#equalHeight .box").length; i < li; i++) {
  var currentHeight = $("#equalHeight .box:eq("+i+")").height();
  if (currentHeight > maxHeight) {
    maxHeight = currentHeight;
  };
};
$("#equalHeight .box").height(maxHeight);