pics/public/js/albumnav.js

function enableKeyDownNavigation() {
	document.addEventListener("keydown", function (event) {
		if (event.keyCode == 37) {
			var target = document.querySelector("ul.pagination > :first-child a");
			if (target && target.href) {
				event.preventDefault();
				document.location.href = target.href;
			}
		}
		else if (event.keyCode == 39) {
			var target = document.querySelector("ul.pagination > :last-child a");
			if (target && target.href) {
				event.preventDefault();
				document.location.href = target.href;
			}
		}
	}, false);
}

function disableKeyDownPropagation(obj) {
	for (var x = 0; x < obj.length; x++) {
		obj[x].addEventListener("keydown", function (event) {
			if (event.keyCode == 37 || event.keyCode == 39) {
				event.stopPropagation();
			}
		});
	}
}

enableKeyDownNavigation();
disableKeyDownPropagation(document.getElementsByTagName("textarea"));
disableKeyDownPropagation(document.getElementsByTagName("input"));