Mootools event hashchange

hashchange.js

/*
    Original: https://github.com/greggoryhz/MooTools-onHashChange-Event

    Example:

        window.addEvent('hashchange', function(hash) { console.log(hash); });
*/


Element.Events.hashchange = {
    onAdd: function(fn) {
        var hash = location.hash;

        var hashchange = function () {
            if (hash == location.hash) return;
            hash = location.hash;
            
            var hash_real = (hash.indexOf('#') == 0 ? hash.substr(1): hash);
            fn.call(this, hash_real);
        };

        if ("onhashchange" in window)
            window.onhashchange = hashchange;
        else
            hashchange.periodical(50);
    }
};