<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8" />
    </head>
    <body>
        <a href="http://google.com">google</a>
        <a href="http://yandex.ru">yandex</a>
        <script>
            document.onclick = function(event) {
                var target = (event && event.target) || window.event.srcElement;
                if (target instanceof HTMLAnchorElement) {
                    alert(target.href);
                    return false;
                }
            };
        </script>
    </body>
</html>