keypress nav

keypress.js

    <script>
        $(function() {
            // let's make a bespoke handler for a keypress, so we can potentially
            // do something like animate the A or whatever
            $("li.prev a, li.next a").bind('keynav', function(e) {
                // $(this) is the A element at this point
                // for now, just go to the href, but we could do more fun stuff here
                window.location = $(this).attr("href");
            });

            // bind the keydown event and listen out for left and right keys only
            $(window).keydown(function(e) {
                switch (e.which) {
                    case 37: // left
                        $("li.prev a").trigger("keynav");
                        break;
                    case 39: // right
                        $("li.next a").trigger("keynav");
                        break;
                    default:
                        // nada
                        break;
                }
            });
        });
    </script>