jQuery(document).ready(function ($) {
	$(document).keydown(function (e) {
		var url = false;
		if (e.which === 37) {  // Left arrow key code
			url = $('.previous-image a').attr('href');
		}
		else if (e.which === 39) {  // Right arrow key code
			url = $('.entry-attachment a').attr('href');
		}
		if (url && ( !$('textarea, input').is(':focus') )) {
			window.location = url;
		}
	});
});