the $.element is no longer defined in MooTools 1.2.3 and there breaks MooCanvas if using MooTools 1.2.3

I have temporally fixed this by defining $.element in Canvas.js:

$.element = function(el, nocash){
    $uid(el);
    if (!nocash && !el.$family && !(/^object|embed$/i).test(el.tagName)){
        var proto = Element.Prototype;
        for (var p in proto) el[p] = proto[p];
    };
    return el;
};

just before:

$.Element = $.element;