Avoid scroll-up when click in a link with href="#"

no-scrollup

<script src="http://yui.yahooapis.com/3.12.0/build/yui/yui.js"></script>
<script>
YUI().use('node-base', 'node-event-delegate', function (Y) {
    Y.one('body').delegate('click', function (e) {
        e.preventDefault();
    }, 'a[href="#"]');
});
</script>