making cloning element storage in mootools possible

cloneStorage.js

(function() {
    var eliminateOrig = Element.prototype.eliminate;
    var localStorage = {};
    
    var get = function(uid){
        return (localStorage[uid] || (localStorage[uid] = [])); // converted to an array to store keys stored
    };

    Element.implement({
        lstore: function(property, value) {
            // use this instead of Element.store
            var storage = get(this.uid);
            // store the key so we can clone it after
            if (!storage[property])
                storage.push(property);
            return this.store.apply(this, arguments);
        },
        eliminate: function(property) {
            var storage = get(this.uid);
            storage.erase(property);
            return eliminateOrig.apply(this, arguments);
        },
        cloneStorage: function(from) {
            // new prototype to clone
            var other = get(from.uid);
            other.each(function(el) {
                this.lstore(el, from.retrieve(el));
            }, this);
            return this;
        }
    });
})();