$(document).ready(function () {
    $.fn.equalHeights = function () {
        var $container = $(this).children('div');
        var maxHeight = 0;
        $container.each(function () {
            var height = $(this).height();
            if (height > maxHeight) {
                maxHeight = height;
            }
        });
        $container.each(function () {
            $(this).css('height', maxHeight);
        });
    };
});