[Moo] How to: Delayed Tween

[mmjaeger]

Hello
I've some message text that I like to appear immediately and then
disappear after e.g. 3.5 secs.

If I like to show another message while the effect is still running, I
like to cancel the effect and start showing the new message.

The following code works somewhat but it still seems to chain up the
messages to show - hope somebody can tell me what I'm missing:

        showStatus: function(msg) {
                var el = document.id('statusID');
                el.set('text', msg.toUpperCase());

                if (!$defined(this.fxStatus)) {
                        this.fxStatus = new Fx.Tween(el, {
                                'property': 'opacity',
                                duration: 700
                        });
                } else {
                        this.fxStatus.cancel();
                        this.fxStatus.set('opacity', 0);
                }

                this.fxStatus.set('opacity', 1);
                this.fxStatus.start.pass([1,0], this.fxStatus).delay(3500);
        },


Thanks