orientation.js

(function ($) {
	$(function () {
		$('img').each(function () {
			var i = $(this);
			if (this.width > this.height) {
				i.addClass('landscape');
			} else if (this.width < this.height) {
				i.addClass('portrait');
			} else {
				i.addClass('square');
			}
		});
	});
})(jQuery);