[Moo] mootools 1.12 Compatibility 1.2 or higher

[MooKing]

hi everyone
version 1.12 of this code is working very nice, but I need version 1.2
or higher. How do I implement this code?

var Rokmoomenu = new Class({
        options : {
                bgiframe : true,
                hoverClass : 'sfHover',
                delay : 500,
                animate : {
                        props : [ 'opacity', 'height' ],
                        opts : Class.empty
                }
        },
        initialize : function(el, options) {
                this.setOptions(options);
                this.element = $(el);
                this.element.getElements('li').each(function(el) {
                        el.addEvents({
                                'mouseover' : this.over.bind(this, el),
                                'mouseout' : this.out.bind(this, el)
                        })
                }, this)
        },
        over : function(el) {
                $clear(el.sfTimer);
                if (!el.hasClass(this.options.hoverClass)) {
                        el.addClass(this.options.hoverClass);
                        var ul = el.getElement('ul');
                        if (ul) {
                                if (this.options.bgiframe)
                                        ul.bgiframe({
                                                opacity : false
                                        });
                                ul.animate(this.options.animate)
                        }
                        el.getSiblings().each(function(ele) {
                                ele.removeClass(this.options.hoverClass)
                        }, this)
                }
        },
        out : function(el) {
                el.sfTimer = (function() {
                        el.removeClass(this.options.hoverClass);
                        var iframe = el.getElement('iframe');
                        if (iframe)
                                iframe.remove()
                }).delay(this.options.delay, this)
        }
});
Rokmoomenu.implement(new Options);
Element.extend({
        animate : function(obj) {
                if (!this.Fx) {
                        this.Fx = this.effects(obj.opts);
                        this.now = this.getStyles.apply(this, obj.props);
                        this.FxEmpty = {};
                        for ( var i in this.now)
                                this.FxEmpty[i] = 0
                }
                if (obj.props.contains('height') || 
obj.props.contains('width')) {
                        this.setStyle('overflow', 'hidden');
                        this.getParents('ul').each(function(el) {
                                el.setStyle('overflow', 'visible')
                        })
                }
                this.Fx.set(this.FxEmpty).start(this.now)
        },
        getParents : function(expr) {
                var matched = [];
                var cur = this.getParent();
                while (cur && cur !== document) {
                        if (cur.getTag().test(expr))
                                matched.push(cur);
                        cur = cur.getParent()
                }
                return matched
        },
        getSiblings : function() {
                var children = this.getParent().getChildren();
                children.splice(children.indexOf(this), 1);
                return children
        }
});